2010 Cadillac Truck Escalade RWD V8-6.2L Page 1503
Danger: Always perform the High Voltage Disabling procedure prior to servicing any High Voltage component or connection.
Personal Protection Equipment (PPE) and proper procedures must be followed.
The High Voltage Disabling procedure will perform the following tasks:
* Identify how to disable high voltage.
* Identify how to test for the presence of high voltage.
* Identify condition under which high voltage is always present and personal protection equipment (PPE) and proper procedures
must be followed.
Before working on any high voltage system, be sure to wear the following Personal Protection Equipment:
* Safety glasses with appropriate side shields when within 50 feet of the vehicle, either indoors or outdoors.
* Certified and up-to-date Class "0" Insulation gloves rated at 1000V with leather protectors.
- Visually and functionally inspect the gloves before use.
- Wear the Insulation gloves at all times when working with the high voltage battery assembly, whether the system is energized or
not.
Failure to follow the procedures exactly as written may result in serious injury or death.
1. Ignition OFF, disable the high voltage at the drive motor generator battery. Refer to High Voltage Disabling ().
2. Test for infinite resistance between the terminals listed below and ground;
* positive contactor terminal X2
* positive contactor terminal X3
* negative contactor terminal X2
* negative contactor terminal X3
瀚慖f less than the specified value, replace the high voltage cable.
3. Test for less than 1 ohm between the terminals listed below;
* B+ (300 V) and positive contactor terminal X2
* Ground (300 V) and negative contactor terminal X2
* positive contactor terminal X3 and positive cable terminal X1
* negative contactor terminal X3 and negative cable terminal X2
瀚慖f greater than the specified range, replace the high voltage cable.
4. Connect the 12 V battery.
5. Ignition ON, command the negative and positive contactors and the current limit relay ON and OFF with a scan tool. Listen for the contactors
and relay to turn ON and OFF.
瀚慖f the negative contactor, positive contactor or the current limit relay does not turn ON and OFF, refer to High Voltage Contactor/Relay
Malfunction ().
6. If all the circuit tests normal, replace the drive motor generator battery.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Drive Motor Battery Negative Relay Cable Replacement ()
* Drive Motor Battery Positive Relay Cable Replacement ()
* Drive Motor Battery Positive and Negative Cable Replacement ()
* Drive Motor Generator Battery Replacement and Shipping Preparation ()
* Control Module References (See: Testing and Inspection/Programming and Relearning) for drive motor generator battery control module
replacement, setup and programming
Showing posts with label Danger: Always perform the High Voltage Disabling procedure prior to servicing any High Voltage component or connection.. Show all posts
Showing posts with label Danger: Always perform the High Voltage Disabling procedure prior to servicing any High Voltage component or connection.. Show all posts
Tuesday, June 9, 2020
Friday, May 22, 2020
2010 Cadillac Truck Escalade RWD V8-6.2L Page 1066
2010 Cadillac Truck Escalade RWD V8-6.2L Page 1066
Danger: Always perform the High Voltage Disabling procedure prior to servicing any High Voltage component or connection.
Personal Protection Equipment (PPE) and proper procedures must be followed.
The High Voltage Disabling procedure will perform the following tasks:
* Identify how to disable high voltage.
* Identify how to test for the presence of high voltage.
* Identify condition under which high voltage is always present and personal protection equipment (PPE) and proper procedures
must be followed.
Before working on any high voltage system, be sure to wear the following Personal Protection Equipment:
* Safety glasses with appropriate side shields when within 50 feet of the vehicle, either indoors or outdoors.
* Certified and up-to-date Class "0" Insulation gloves rated at 1000V with leather protectors.
- Visually and functionally inspect the gloves before use.
- Wear the Insulation gloves at all times when working with the high voltage battery assembly, whether the system is energized or
not.
Failure to follow the procedures exactly as written may result in serious injury or death.
1. Ignition OFF, disable the high voltage at the drive motor generator battery. Refer to High Voltage Disabling ().
2. Verify that none of the following conditions exist:
* the inlet and outlet air vents do not have any obstructions or blockages
* the vent fan blades are not broken or damaged
* the internal foam seals are not missing or damaged
瀚慖f any conditions are found, remove, repair or replace as necessary.
3. Ignition OFF, disconnect the X3 harness connector at the drive motor generator battery control module.
4. Test for 1k ohm-209k ohm between each of the terminals listed below. The resistance of each temperature sensor should be within the
specified range, and within 500 ohm of each other. Refer to Temperature Versus Resistance ().
* Sensor 1-5 V reference circuit terminal 1 and low reference circuit terminal 2
* Sensor 2-5 V Reference circuit terminal 3 and low reference circuit terminal 4
* Sensor 3-5 V Reference circuit terminal 5 and low reference circuit terminal 6
* Sensor 4-5 V Reference circuit terminal 7 and low reference circuit terminal 8
瀚慖f not within the specified range, replace the drive motor battery sensor module wiring harness.
5. If all circuits test normal, replace the drive motor generator battery control module.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Drive Motor Battery Sensor Module Wiring Harness Replacement ()
* Control Module References (See: Testing and Inspection/Programming and Relearning) for drive motor generator battery control module
replacement, setup and programming
P0AFA
DTC P0AFA
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
Danger: Always perform the High Voltage Disabling procedure prior to servicing any High Voltage component or connection.
Personal Protection Equipment (PPE) and proper procedures must be followed.
The High Voltage Disabling procedure will perform the following tasks:
* Identify how to disable high voltage.
* Identify how to test for the presence of high voltage.
* Identify condition under which high voltage is always present and personal protection equipment (PPE) and proper procedures
must be followed.
Before working on any high voltage system, be sure to wear the following Personal Protection Equipment:
* Safety glasses with appropriate side shields when within 50 feet of the vehicle, either indoors or outdoors.
* Certified and up-to-date Class "0" Insulation gloves rated at 1000V with leather protectors.
- Visually and functionally inspect the gloves before use.
- Wear the Insulation gloves at all times when working with the high voltage battery assembly, whether the system is energized or
not.
Failure to follow the procedures exactly as written may result in serious injury or death.
1. Ignition OFF, disable the high voltage at the drive motor generator battery. Refer to High Voltage Disabling ().
2. Verify that none of the following conditions exist:
* the inlet and outlet air vents do not have any obstructions or blockages
* the vent fan blades are not broken or damaged
* the internal foam seals are not missing or damaged
瀚慖f any conditions are found, remove, repair or replace as necessary.
3. Ignition OFF, disconnect the X3 harness connector at the drive motor generator battery control module.
4. Test for 1k ohm-209k ohm between each of the terminals listed below. The resistance of each temperature sensor should be within the
specified range, and within 500 ohm of each other. Refer to Temperature Versus Resistance ().
* Sensor 1-5 V reference circuit terminal 1 and low reference circuit terminal 2
* Sensor 2-5 V Reference circuit terminal 3 and low reference circuit terminal 4
* Sensor 3-5 V Reference circuit terminal 5 and low reference circuit terminal 6
* Sensor 4-5 V Reference circuit terminal 7 and low reference circuit terminal 8
瀚慖f not within the specified range, replace the drive motor battery sensor module wiring harness.
5. If all circuits test normal, replace the drive motor generator battery control module.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Drive Motor Battery Sensor Module Wiring Harness Replacement ()
* Control Module References (See: Testing and Inspection/Programming and Relearning) for drive motor generator battery control module
replacement, setup and programming
P0AFA
DTC P0AFA
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
Wednesday, May 20, 2020
2010 Cadillac Truck Escalade RWD V8-6.2L Page 1034
2010 Cadillac Truck Escalade RWD V8-6.2L Page 1034
Danger: Always perform the High Voltage Disabling procedure prior to servicing any High Voltage component or connection.
Personal Protection Equipment (PPE) and proper procedures must be followed.
The High Voltage Disabling procedure will perform the following tasks:
* Identify how to disable high voltage.
* Identify how to test for the presence of high voltage.
* Identify condition under which high voltage is always present and personal protection equipment (PPE) and proper procedures
must be followed.
Failure to follow the procedures exactly as written may result in serious injury or death.
1. Ignition OFF, disable the high voltage at the drive motor generator battery. Refer to High Voltage Disabling ().
2. Disconnect the harness connector at the current sensor.
3. Ignition OFF and scan tool disconnected for 30 seconds, test for less than 5 ohm between the low reference circuit terminal 2 and ground.
瀚慖f greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the drive
motor generator battery control module.
4. Connect the 12 V battery.
5. Ignition ON, test for 4.8-5.2 V between the 5 V reference circuit terminal 1 and ground.
瀚慖f less than the specified range, test the circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the drive
motor generator battery control module.
瀚慖f greater than the specified range, test the circuit for a short to voltage. If the circuit tests normal, replace the drive motor generator
battery control module.
6. Install a 3 A fused jumper wire between the signal circuit terminal 3 and the low reference circuit terminal 2. Verify the scan tool Calc.
Hybrid Batt. Current is greater than +225 A.
瀚慖f less than the specified range, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace
the drive motor generator battery control module.
7. If all circuits test normal, replace the current sensor.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the repair.
* Drive Motor Battery Current Sensor Replacement ()
* Drive Motor Battery Sensor Module Wiring Harness Replacement ()
* Control Module References (See: Testing and Inspection/Programming and Relearning) for drive motor generator battery control module
replacement, setup and programming
P0AC2
DTC P0AC0, P0AC1, P0AC2, or P1A07
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptors
DTC P0AC0
- Hybrid Battery Current Sensor Performance
DTC P0AC1
- Hybrid Battery Current Sensor Circuit Low Voltage
Danger: Always perform the High Voltage Disabling procedure prior to servicing any High Voltage component or connection.
Personal Protection Equipment (PPE) and proper procedures must be followed.
The High Voltage Disabling procedure will perform the following tasks:
* Identify how to disable high voltage.
* Identify how to test for the presence of high voltage.
* Identify condition under which high voltage is always present and personal protection equipment (PPE) and proper procedures
must be followed.
Failure to follow the procedures exactly as written may result in serious injury or death.
1. Ignition OFF, disable the high voltage at the drive motor generator battery. Refer to High Voltage Disabling ().
2. Disconnect the harness connector at the current sensor.
3. Ignition OFF and scan tool disconnected for 30 seconds, test for less than 5 ohm between the low reference circuit terminal 2 and ground.
瀚慖f greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the drive
motor generator battery control module.
4. Connect the 12 V battery.
5. Ignition ON, test for 4.8-5.2 V between the 5 V reference circuit terminal 1 and ground.
瀚慖f less than the specified range, test the circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the drive
motor generator battery control module.
瀚慖f greater than the specified range, test the circuit for a short to voltage. If the circuit tests normal, replace the drive motor generator
battery control module.
6. Install a 3 A fused jumper wire between the signal circuit terminal 3 and the low reference circuit terminal 2. Verify the scan tool Calc.
Hybrid Batt. Current is greater than +225 A.
瀚慖f less than the specified range, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace
the drive motor generator battery control module.
7. If all circuits test normal, replace the current sensor.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the repair.
* Drive Motor Battery Current Sensor Replacement ()
* Drive Motor Battery Sensor Module Wiring Harness Replacement ()
* Control Module References (See: Testing and Inspection/Programming and Relearning) for drive motor generator battery control module
replacement, setup and programming
P0AC2
DTC P0AC0, P0AC1, P0AC2, or P1A07
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptors
DTC P0AC0
- Hybrid Battery Current Sensor Performance
DTC P0AC1
- Hybrid Battery Current Sensor Circuit Low Voltage
Tuesday, November 5, 2019
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 1167
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 1167
Danger: Always perform the High Voltage Disabling procedure prior to servicing any High Voltage component or connection.
Personal Protection Equipment (PPE) and proper procedures must be followed.
The High Voltage Disabling procedure will perform the following tasks:
* Identify how to disable high voltage.
* Identify how to test for the presence of high voltage.
* Identify condition under which high voltage is always present and personal protection equipment (PPE) and proper procedures
must be followed.
Before working on any high voltage system, be sure to wear the following Personal Protection Equipment:
* Safety glasses with appropriate side shields when within 50 feet of the vehicle, either indoors or outdoors.
* Certified and up-to-date Class "0" Insulation gloves rated at 1000V with leather protectors.
- Visually and functionally inspect the gloves before use.
- Wear the Insulation gloves at all times when working with the high voltage battery assembly, whether the system is energized or
not.
Failure to follow the procedures exactly as written may result in serious injury or death.
1. Ignition OFF, disable the high voltage at the drive motor generator battery. Refer to High Voltage Disabling ().
2. Verify that none of the following conditions exist:
* the inlet and outlet air vents do not have any obstructions or blockages
* the vent fan blades are not broken or damaged
* the internal foam seals are not missing or damaged
瀚慖f any conditions are found, remove, repair or replace as necessary.
3. Ignition OFF, disconnect the X3 harness connector at the drive motor generator battery control module.
4. Test for 1k ohm-209k ohm between each of the terminals listed below. The resistance of each temperature sensor should be within the
specified range, and within 500 ohm of each other. Refer to Temperature Versus Resistance ().
* Sensor 1-5 V reference circuit terminal 1 and low reference circuit terminal 2
* Sensor 2-5 V Reference circuit terminal 3 and low reference circuit terminal 4
* Sensor 3-5 V Reference circuit terminal 5 and low reference circuit terminal 6
* Sensor 4-5 V Reference circuit terminal 7 and low reference circuit terminal 8
瀚慖f not within the specified range, replace the drive motor battery sensor module wiring harness.
5. If all circuits test normal, replace the drive motor generator battery control module.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Drive Motor Battery Sensor Module Wiring Harness Replacement ()
* Control Module References (See: Testing and Inspection/Programming and Relearning) for drive motor generator battery control module
replacement, setup and programming
P0AFA
DTC P0AFA
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
Danger: Always perform the High Voltage Disabling procedure prior to servicing any High Voltage component or connection.
Personal Protection Equipment (PPE) and proper procedures must be followed.
The High Voltage Disabling procedure will perform the following tasks:
* Identify how to disable high voltage.
* Identify how to test for the presence of high voltage.
* Identify condition under which high voltage is always present and personal protection equipment (PPE) and proper procedures
must be followed.
Before working on any high voltage system, be sure to wear the following Personal Protection Equipment:
* Safety glasses with appropriate side shields when within 50 feet of the vehicle, either indoors or outdoors.
* Certified and up-to-date Class "0" Insulation gloves rated at 1000V with leather protectors.
- Visually and functionally inspect the gloves before use.
- Wear the Insulation gloves at all times when working with the high voltage battery assembly, whether the system is energized or
not.
Failure to follow the procedures exactly as written may result in serious injury or death.
1. Ignition OFF, disable the high voltage at the drive motor generator battery. Refer to High Voltage Disabling ().
2. Verify that none of the following conditions exist:
* the inlet and outlet air vents do not have any obstructions or blockages
* the vent fan blades are not broken or damaged
* the internal foam seals are not missing or damaged
瀚慖f any conditions are found, remove, repair or replace as necessary.
3. Ignition OFF, disconnect the X3 harness connector at the drive motor generator battery control module.
4. Test for 1k ohm-209k ohm between each of the terminals listed below. The resistance of each temperature sensor should be within the
specified range, and within 500 ohm of each other. Refer to Temperature Versus Resistance ().
* Sensor 1-5 V reference circuit terminal 1 and low reference circuit terminal 2
* Sensor 2-5 V Reference circuit terminal 3 and low reference circuit terminal 4
* Sensor 3-5 V Reference circuit terminal 5 and low reference circuit terminal 6
* Sensor 4-5 V Reference circuit terminal 7 and low reference circuit terminal 8
瀚慖f not within the specified range, replace the drive motor battery sensor module wiring harness.
5. If all circuits test normal, replace the drive motor generator battery control module.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Drive Motor Battery Sensor Module Wiring Harness Replacement ()
* Control Module References (See: Testing and Inspection/Programming and Relearning) for drive motor generator battery control module
replacement, setup and programming
P0AFA
DTC P0AFA
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 1135
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 1135
Danger: Always perform the High Voltage Disabling procedure prior to servicing any High Voltage component or connection.
Personal Protection Equipment (PPE) and proper procedures must be followed.
The High Voltage Disabling procedure will perform the following tasks:
* Identify how to disable high voltage.
* Identify how to test for the presence of high voltage.
* Identify condition under which high voltage is always present and personal protection equipment (PPE) and proper procedures
must be followed.
Failure to follow the procedures exactly as written may result in serious injury or death.
1. Ignition OFF, disable the high voltage at the drive motor generator battery. Refer to High Voltage Disabling ().
2. Disconnect the harness connector at the current sensor.
3. Ignition OFF and scan tool disconnected for 30 seconds, test for less than 5 ohm between the low reference circuit terminal 2 and ground.
瀚慖f greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the drive
motor generator battery control module.
4. Connect the 12 V battery.
5. Ignition ON, test for 4.8-5.2 V between the 5 V reference circuit terminal 1 and ground.
瀚慖f less than the specified range, test the circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the drive
motor generator battery control module.
瀚慖f greater than the specified range, test the circuit for a short to voltage. If the circuit tests normal, replace the drive motor generator
battery control module.
6. Install a 3 A fused jumper wire between the signal circuit terminal 3 and the low reference circuit terminal 2. Verify the scan tool Calc.
Hybrid Batt. Current is greater than +225 A.
瀚慖f less than the specified range, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace
the drive motor generator battery control module.
7. If all circuits test normal, replace the current sensor.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the repair.
* Drive Motor Battery Current Sensor Replacement ()
* Drive Motor Battery Sensor Module Wiring Harness Replacement ()
* Control Module References (See: Testing and Inspection/Programming and Relearning) for drive motor generator battery control module
replacement, setup and programming
P0AC2
DTC P0AC0, P0AC1, P0AC2, or P1A07
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptors
DTC P0AC0
- Hybrid Battery Current Sensor Performance
DTC P0AC1
- Hybrid Battery Current Sensor Circuit Low Voltage
Danger: Always perform the High Voltage Disabling procedure prior to servicing any High Voltage component or connection.
Personal Protection Equipment (PPE) and proper procedures must be followed.
The High Voltage Disabling procedure will perform the following tasks:
* Identify how to disable high voltage.
* Identify how to test for the presence of high voltage.
* Identify condition under which high voltage is always present and personal protection equipment (PPE) and proper procedures
must be followed.
Failure to follow the procedures exactly as written may result in serious injury or death.
1. Ignition OFF, disable the high voltage at the drive motor generator battery. Refer to High Voltage Disabling ().
2. Disconnect the harness connector at the current sensor.
3. Ignition OFF and scan tool disconnected for 30 seconds, test for less than 5 ohm between the low reference circuit terminal 2 and ground.
瀚慖f greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the drive
motor generator battery control module.
4. Connect the 12 V battery.
5. Ignition ON, test for 4.8-5.2 V between the 5 V reference circuit terminal 1 and ground.
瀚慖f less than the specified range, test the circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the drive
motor generator battery control module.
瀚慖f greater than the specified range, test the circuit for a short to voltage. If the circuit tests normal, replace the drive motor generator
battery control module.
6. Install a 3 A fused jumper wire between the signal circuit terminal 3 and the low reference circuit terminal 2. Verify the scan tool Calc.
Hybrid Batt. Current is greater than +225 A.
瀚慖f less than the specified range, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace
the drive motor generator battery control module.
7. If all circuits test normal, replace the current sensor.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the repair.
* Drive Motor Battery Current Sensor Replacement ()
* Drive Motor Battery Sensor Module Wiring Harness Replacement ()
* Control Module References (See: Testing and Inspection/Programming and Relearning) for drive motor generator battery control module
replacement, setup and programming
P0AC2
DTC P0AC0, P0AC1, P0AC2, or P1A07
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptors
DTC P0AC0
- Hybrid Battery Current Sensor Performance
DTC P0AC1
- Hybrid Battery Current Sensor Circuit Low Voltage
Wednesday, October 30, 2019
2010 Cadillac Truck Escalade ESV AWD V8-6.2L Page 1604
2010 Cadillac Truck Escalade ESV AWD V8-6.2L Page 1604
Danger: Always perform the High Voltage Disabling procedure prior to servicing any High Voltage component or connection.
Personal Protection Equipment (PPE) and proper procedures must be followed.
The High Voltage Disabling procedure will perform the following tasks:
* Identify how to disable high voltage.
* Identify how to test for the presence of high voltage.
* Identify condition under which high voltage is always present and personal protection equipment (PPE) and proper procedures
must be followed.
Before working on any high voltage system, be sure to wear the following Personal Protection Equipment:
* Safety glasses with appropriate side shields when within 50 feet of the vehicle, either indoors or outdoors.
* Certified and up-to-date Class "0" Insulation gloves rated at 1000V with leather protectors.
- Visually and functionally inspect the gloves before use.
- Wear the Insulation gloves at all times when working with the high voltage battery assembly, whether the system is energized or
not.
Failure to follow the procedures exactly as written may result in serious injury or death.
1. Ignition OFF, disable the high voltage at the drive motor generator battery. Refer to High Voltage Disabling ().
2. Test for infinite resistance between the terminals listed below and ground;
* positive contactor terminal X2
* positive contactor terminal X3
* negative contactor terminal X2
* negative contactor terminal X3
锟斤拷If less than the specified value, replace the high voltage cable.
3. Test for less than 1 ohm between the terminals listed below;
* B+ (300 V) and positive contactor terminal X2
* Ground (300 V) and negative contactor terminal X2
* positive contactor terminal X3 and positive cable terminal X1
* negative contactor terminal X3 and negative cable terminal X2
锟斤拷If greater than the specified range, replace the high voltage cable.
4. Connect the 12 V battery.
5. Ignition ON, command the negative and positive contactors and the current limit relay ON and OFF with a scan tool. Listen for the contactors
and relay to turn ON and OFF.
锟斤拷If the negative contactor, positive contactor or the current limit relay does not turn ON and OFF, refer to High Voltage Contactor/Relay
Malfunction ().
6. If all the circuit tests normal, replace the drive motor generator battery.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Drive Motor Battery Negative Relay Cable Replacement ()
* Drive Motor Battery Positive Relay Cable Replacement ()
* Drive Motor Battery Positive and Negative Cable Replacement ()
* Drive Motor Generator Battery Replacement and Shipping Preparation ()
* Control Module References (See: Testing and Inspection/Programming and Relearning) for drive motor generator battery control module
replacement, setup and programming
Danger: Always perform the High Voltage Disabling procedure prior to servicing any High Voltage component or connection.
Personal Protection Equipment (PPE) and proper procedures must be followed.
The High Voltage Disabling procedure will perform the following tasks:
* Identify how to disable high voltage.
* Identify how to test for the presence of high voltage.
* Identify condition under which high voltage is always present and personal protection equipment (PPE) and proper procedures
must be followed.
Before working on any high voltage system, be sure to wear the following Personal Protection Equipment:
* Safety glasses with appropriate side shields when within 50 feet of the vehicle, either indoors or outdoors.
* Certified and up-to-date Class "0" Insulation gloves rated at 1000V with leather protectors.
- Visually and functionally inspect the gloves before use.
- Wear the Insulation gloves at all times when working with the high voltage battery assembly, whether the system is energized or
not.
Failure to follow the procedures exactly as written may result in serious injury or death.
1. Ignition OFF, disable the high voltage at the drive motor generator battery. Refer to High Voltage Disabling ().
2. Test for infinite resistance between the terminals listed below and ground;
* positive contactor terminal X2
* positive contactor terminal X3
* negative contactor terminal X2
* negative contactor terminal X3
锟斤拷If less than the specified value, replace the high voltage cable.
3. Test for less than 1 ohm between the terminals listed below;
* B+ (300 V) and positive contactor terminal X2
* Ground (300 V) and negative contactor terminal X2
* positive contactor terminal X3 and positive cable terminal X1
* negative contactor terminal X3 and negative cable terminal X2
锟斤拷If greater than the specified range, replace the high voltage cable.
4. Connect the 12 V battery.
5. Ignition ON, command the negative and positive contactors and the current limit relay ON and OFF with a scan tool. Listen for the contactors
and relay to turn ON and OFF.
锟斤拷If the negative contactor, positive contactor or the current limit relay does not turn ON and OFF, refer to High Voltage Contactor/Relay
Malfunction ().
6. If all the circuit tests normal, replace the drive motor generator battery.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Drive Motor Battery Negative Relay Cable Replacement ()
* Drive Motor Battery Positive Relay Cable Replacement ()
* Drive Motor Battery Positive and Negative Cable Replacement ()
* Drive Motor Generator Battery Replacement and Shipping Preparation ()
* Control Module References (See: Testing and Inspection/Programming and Relearning) for drive motor generator battery control module
replacement, setup and programming
Friday, October 25, 2019
2010 Cadillac Truck Escalade ESV AWD V8-6.2L Page 1167
2010 Cadillac Truck Escalade ESV AWD V8-6.2L Page 1167
Danger: Always perform the High Voltage Disabling procedure prior to servicing any High Voltage component or connection.
Personal Protection Equipment (PPE) and proper procedures must be followed.
The High Voltage Disabling procedure will perform the following tasks:
* Identify how to disable high voltage.
* Identify how to test for the presence of high voltage.
* Identify condition under which high voltage is always present and personal protection equipment (PPE) and proper procedures
must be followed.
Before working on any high voltage system, be sure to wear the following Personal Protection Equipment:
* Safety glasses with appropriate side shields when within 50 feet of the vehicle, either indoors or outdoors.
* Certified and up-to-date Class "0" Insulation gloves rated at 1000V with leather protectors.
- Visually and functionally inspect the gloves before use.
- Wear the Insulation gloves at all times when working with the high voltage battery assembly, whether the system is energized or
not.
Failure to follow the procedures exactly as written may result in serious injury or death.
1. Ignition OFF, disable the high voltage at the drive motor generator battery. Refer to High Voltage Disabling ().
2. Verify that none of the following conditions exist:
* the inlet and outlet air vents do not have any obstructions or blockages
* the vent fan blades are not broken or damaged
* the internal foam seals are not missing or damaged
锟斤拷If any conditions are found, remove, repair or replace as necessary.
3. Ignition OFF, disconnect the X3 harness connector at the drive motor generator battery control module.
4. Test for 1k ohm-209k ohm between each of the terminals listed below. The resistance of each temperature sensor should be within the
specified range, and within 500 ohm of each other. Refer to Temperature Versus Resistance ().
* Sensor 1-5 V reference circuit terminal 1 and low reference circuit terminal 2
* Sensor 2-5 V Reference circuit terminal 3 and low reference circuit terminal 4
* Sensor 3-5 V Reference circuit terminal 5 and low reference circuit terminal 6
* Sensor 4-5 V Reference circuit terminal 7 and low reference circuit terminal 8
锟斤拷If not within the specified range, replace the drive motor battery sensor module wiring harness.
5. If all circuits test normal, replace the drive motor generator battery control module.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Drive Motor Battery Sensor Module Wiring Harness Replacement ()
* Control Module References (See: Testing and Inspection/Programming and Relearning) for drive motor generator battery control module
replacement, setup and programming
P0AFA
DTC P0AFA
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
Danger: Always perform the High Voltage Disabling procedure prior to servicing any High Voltage component or connection.
Personal Protection Equipment (PPE) and proper procedures must be followed.
The High Voltage Disabling procedure will perform the following tasks:
* Identify how to disable high voltage.
* Identify how to test for the presence of high voltage.
* Identify condition under which high voltage is always present and personal protection equipment (PPE) and proper procedures
must be followed.
Before working on any high voltage system, be sure to wear the following Personal Protection Equipment:
* Safety glasses with appropriate side shields when within 50 feet of the vehicle, either indoors or outdoors.
* Certified and up-to-date Class "0" Insulation gloves rated at 1000V with leather protectors.
- Visually and functionally inspect the gloves before use.
- Wear the Insulation gloves at all times when working with the high voltage battery assembly, whether the system is energized or
not.
Failure to follow the procedures exactly as written may result in serious injury or death.
1. Ignition OFF, disable the high voltage at the drive motor generator battery. Refer to High Voltage Disabling ().
2. Verify that none of the following conditions exist:
* the inlet and outlet air vents do not have any obstructions or blockages
* the vent fan blades are not broken or damaged
* the internal foam seals are not missing or damaged
锟斤拷If any conditions are found, remove, repair or replace as necessary.
3. Ignition OFF, disconnect the X3 harness connector at the drive motor generator battery control module.
4. Test for 1k ohm-209k ohm between each of the terminals listed below. The resistance of each temperature sensor should be within the
specified range, and within 500 ohm of each other. Refer to Temperature Versus Resistance ().
* Sensor 1-5 V reference circuit terminal 1 and low reference circuit terminal 2
* Sensor 2-5 V Reference circuit terminal 3 and low reference circuit terminal 4
* Sensor 3-5 V Reference circuit terminal 5 and low reference circuit terminal 6
* Sensor 4-5 V Reference circuit terminal 7 and low reference circuit terminal 8
锟斤拷If not within the specified range, replace the drive motor battery sensor module wiring harness.
5. If all circuits test normal, replace the drive motor generator battery control module.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Drive Motor Battery Sensor Module Wiring Harness Replacement ()
* Control Module References (See: Testing and Inspection/Programming and Relearning) for drive motor generator battery control module
replacement, setup and programming
P0AFA
DTC P0AFA
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
2010 Cadillac Truck Escalade ESV AWD V8-6.2L Page 1135
2010 Cadillac Truck Escalade ESV AWD V8-6.2L Page 1135
Danger: Always perform the High Voltage Disabling procedure prior to servicing any High Voltage component or connection.
Personal Protection Equipment (PPE) and proper procedures must be followed.
The High Voltage Disabling procedure will perform the following tasks:
* Identify how to disable high voltage.
* Identify how to test for the presence of high voltage.
* Identify condition under which high voltage is always present and personal protection equipment (PPE) and proper procedures
must be followed.
Failure to follow the procedures exactly as written may result in serious injury or death.
1. Ignition OFF, disable the high voltage at the drive motor generator battery. Refer to High Voltage Disabling ().
2. Disconnect the harness connector at the current sensor.
3. Ignition OFF and scan tool disconnected for 30 seconds, test for less than 5 ohm between the low reference circuit terminal 2 and ground.
锟斤拷If greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the drive
motor generator battery control module.
4. Connect the 12 V battery.
5. Ignition ON, test for 4.8-5.2 V between the 5 V reference circuit terminal 1 and ground.
锟斤拷If less than the specified range, test the circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the drive
motor generator battery control module.
锟斤拷If greater than the specified range, test the circuit for a short to voltage. If the circuit tests normal, replace the drive motor generator
battery control module.
6. Install a 3 A fused jumper wire between the signal circuit terminal 3 and the low reference circuit terminal 2. Verify the scan tool Calc.
Hybrid Batt. Current is greater than +225 A.
锟斤拷If less than the specified range, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace
the drive motor generator battery control module.
7. If all circuits test normal, replace the current sensor.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the repair.
* Drive Motor Battery Current Sensor Replacement ()
* Drive Motor Battery Sensor Module Wiring Harness Replacement ()
* Control Module References (See: Testing and Inspection/Programming and Relearning) for drive motor generator battery control module
replacement, setup and programming
P0AC2
DTC P0AC0, P0AC1, P0AC2, or P1A07
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptors
DTC P0AC0
- Hybrid Battery Current Sensor Performance
DTC P0AC1
- Hybrid Battery Current Sensor Circuit Low Voltage
Danger: Always perform the High Voltage Disabling procedure prior to servicing any High Voltage component or connection.
Personal Protection Equipment (PPE) and proper procedures must be followed.
The High Voltage Disabling procedure will perform the following tasks:
* Identify how to disable high voltage.
* Identify how to test for the presence of high voltage.
* Identify condition under which high voltage is always present and personal protection equipment (PPE) and proper procedures
must be followed.
Failure to follow the procedures exactly as written may result in serious injury or death.
1. Ignition OFF, disable the high voltage at the drive motor generator battery. Refer to High Voltage Disabling ().
2. Disconnect the harness connector at the current sensor.
3. Ignition OFF and scan tool disconnected for 30 seconds, test for less than 5 ohm between the low reference circuit terminal 2 and ground.
锟斤拷If greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the drive
motor generator battery control module.
4. Connect the 12 V battery.
5. Ignition ON, test for 4.8-5.2 V between the 5 V reference circuit terminal 1 and ground.
锟斤拷If less than the specified range, test the circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the drive
motor generator battery control module.
锟斤拷If greater than the specified range, test the circuit for a short to voltage. If the circuit tests normal, replace the drive motor generator
battery control module.
6. Install a 3 A fused jumper wire between the signal circuit terminal 3 and the low reference circuit terminal 2. Verify the scan tool Calc.
Hybrid Batt. Current is greater than +225 A.
锟斤拷If less than the specified range, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace
the drive motor generator battery control module.
7. If all circuits test normal, replace the current sensor.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the repair.
* Drive Motor Battery Current Sensor Replacement ()
* Drive Motor Battery Sensor Module Wiring Harness Replacement ()
* Control Module References (See: Testing and Inspection/Programming and Relearning) for drive motor generator battery control module
replacement, setup and programming
P0AC2
DTC P0AC0, P0AC1, P0AC2, or P1A07
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptors
DTC P0AC0
- Hybrid Battery Current Sensor Performance
DTC P0AC1
- Hybrid Battery Current Sensor Circuit Low Voltage
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