2010 Cadillac Truck SRX FWD V6-3.0L Page 1677

2010 Cadillac Truck SRX FWD V6-3.0L Page 1677

DTCs P0711, P0712, and P0713 are Type B DTCs.

Diagnostic Aids

The transmission control module (TCM) temperature sensor is located inside of the control solenoid valve assembly and its output should resemble

that of the transmission fluid temperature (TFT) sensor's output.

Reference Information

Connector End View Reference

* Component Connector End Views (See: Diagrams/Connector Views/Connector End Views By Name)

* Inline Harness Connector End Views (See: Diagrams/Connector Views/Multiple Junction Connector/Connector End Views By Number)

Description and Operation

Electronic Component Description (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Description and Operation/6T70/6T75 -

Automatic Transmission/Electronic Component Description) for control solenoid valve assembly

Electrical Information Reference

* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit

Testing/Circuit Testing)

* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic

Procedures/Connector Repairs/Connector Repairs)

* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General

Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)

* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring

Repairs/Wiring Repairs)

DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions (See: Diagnostic Trouble Code Descriptions/Powertrain Diagnostic Trouble Code

(DTC) Type Definitions)

Scan Tool Reference

Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information

Circuit/System Verification

1. Engine idling at operating temperature, verify the scan tool Trans Fluid Temp. parameter is between -74 and +174掳C (-101 and +345掳F).

瀚慖f not within the specified range, replace the control solenoid valve assembly.

2. Operate the vehicle at 64 km/h (40 mph) for 10 minutes. Monitor the TCM Temperature, TCM Power up Temperature, and the Trans. Fluid

Temp. parameters with a scan tool. The TCM Temperature and the Trans. Fluid Temp. parameters should be within 25掳C (45掳F) of each

other, and the Trans. Fluid Temp. and TCM Power up Temperature parameters should be within 25掳C (45掳F) of each other.

瀚慖f both are greater than the specified range, replace the control solenoid valve assembly.

3. Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the

conditions that you observed from the Freeze Frame/Failure Records data.

Repair Instructions

Important:

* Perform the Service Fast Learn Adapts (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Testing and

Inspection/Programming and Relearning) following all transmission related repairs.

* Before replacing the TCM, perform the Control Solenoid Valve and Transmission Control Module Assembly Inspection (See:

Transmission and Drivetrain/Automatic Transmission/Transaxle/Testing and Inspection/Component Tests and General

Diagnostics/6T70/6T75 - Automatic Transmission/Control Solenoid Valve and Transmission Control Module Assembly Inspection).

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

Control Module References (See: Testing and Inspection/Programming and Relearning) for control solenoid valve assembly replacement, setup,

and programming

AF40-6 - Automatic Transmission

2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 2245

2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 2245

DTC P0711, P0712, or P0713

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 P0711

- Transmission Fluid Temperature (TFT) Sensor Performance

DTC P0712

- Transmission Fluid Temperature (TFT) Sensor Circuit Low Voltage

DTC P0713

- Transmission Fluid Temperature (TFT) Sensor Circuit High Voltage

Diagnostic Fault Information

Typical Scan Tool Data

Circuit/System Description

The primary source of heat in the transmission is the drive motor generators. The drive motor generators are cooled by the transmission fluid. Hot

fluid exits the drive motor generators and flows to the transmission cooler supply line. The supply line connects to the cooler, which is in front of

the radiator. The transmission fluid cooler pipe assembly is equipped with an internal thermostat that opens at 80掳C (176掳F) for optimum

transmission operation and fuel economy. The transmission cooler pipe thermostat is part of the transmission fluid cooler pipe assembly, located

near the transmission and is not serviced separately. From the cooler, the fluid returns through the transmission fluid cooler pipe assembly and

enters the lubrication circuits. After lubricating the internal components, the fluid returns to the oil pan. The transmission fluid temperature sensor is

located in the control solenoid valve assembly and is not serviced separately.

Conditions for Running the DTC

* No OSS DTCs P0721, P0722, or P0723, P077B, P215C.

* The engine run time is greater than 5 seconds.

* The system voltage is 11-18 V.

* The estimated drive motor power loss is greater than 0.4 kw for 200 seconds.

* The OSS is greater than 200 RPM for 5 seconds.

P0711

* The Trans. Fluid Temp. parameter is -50 to +21掳C (-58 to +70掳F) at start up.

* The ECT is greater than 70掳C (158掳F).

* The ECT is greater than 55掳C (131掳F) at start up.

* The vehicle speed is greater than 8 km/h (5 mph) for 300 seconds.

* The vehicle speed is less than 200 km/h (124 mph) for 5 seconds.

* The TCM temperature parameter is -49 to +169掳C (-56 to +336掳F).

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 2615

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 2615

DTC P0711, P0712, or P0713

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 P0711

- Transmission Fluid Temperature (TFT) Sensor Performance

DTC P0712

- Transmission Fluid Temperature (TFT) Sensor Circuit Low Voltage

DTC P0713

- Transmission Fluid Temperature (TFT) Sensor Circuit High Voltage

Diagnostic Fault Information

Typical Scan Tool Data

Circuit/System Description

The primary source of heat in the transmission is the drive motor generators. The drive motor generators are cooled by the transmission fluid. Hot

fluid exits the drive motor generators and flows to the transmission cooler supply line. The supply line connects to the cooler, which is in front of

the radiator. The transmission fluid cooler pipe assembly is equipped with an internal thermostat that opens at 80掳C (176掳F) for optimum

transmission operation and fuel economy. The transmission cooler pipe thermostat is part of the transmission fluid cooler pipe assembly, located

near the transmission and is not serviced separately. From the cooler, the fluid returns through the transmission fluid cooler pipe assembly and

enters the lubrication circuits. After lubricating the internal components, the fluid returns to the oil pan. The transmission fluid temperature sensor is

located in the control solenoid valve assembly and is not serviced separately.

Conditions for Running the DTC

* No OSS DTCs P0721, P0722, or P0723, P077B, P215C.

* The engine run time is greater than 5 seconds.

* The system voltage is 11-18 V.

* The estimated drive motor power loss is greater than 0.4 kw for 200 seconds.

* The OSS is greater than 200 RPM for 5 seconds.

P0711

* The Trans. Fluid Temp. parameter is -50 to +21掳C (-58 to +70掳F) at start up.

* The ECT is greater than 70掳C (158掳F).

* The ECT is greater than 55掳C (131掳F) at start up.

* The vehicle speed is greater than 8 km/h (5 mph) for 300 seconds.

* The vehicle speed is less than 200 km/h (124 mph) for 5 seconds.

* The TCM temperature parameter is -49 to +169掳C (-56 to +336掳F).

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 2614

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 2614

DTCs P0711, P0712, and P0713 are Type C DTCs.

Diagnostic Aids

During a road test, the transmission fluid temperature (TFT) should steadily increase to a normal operating temperature, and then stabilize.

Reference Information

Schematic Reference

Automatic Transmission Controls Schematics (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Diagrams)

Connector End View Reference

* Component Connector End Views (See: Diagrams/Connector Views)

* Inline Harness Connector End Views (See: Power and Ground Distribution/Multiple Junction Connector/Diagrams)

Electrical Information Reference

* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit

Testing/Circuit Testing)

* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic

Procedures/Connector Repairs/Connector Repairs)

* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General

Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)

* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring

Repairs/Wiring Repairs)

Description and Operation

* Electronic Component Description (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Description and

Operation/6L45/6L50/6L80/6L90 - Automatic Transmission/Electronic Component Description)

* Transmission General Description (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Description and

Operation/6L45/6L50/6L80/6L90 - Automatic Transmission/Transmission General Description)

* Transmission Component and System Description (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Description and

Operation/6L45/6L50/6L80/6L90 - Automatic Transmission/Transmission Component and System Description)

DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions (See: Diagnostic Trouble Code Descriptions/Powertrain Diagnostic Trouble Code

(DTC) Type Definitions)

Circuit/System Verification

1. Engine idling at normal operating temperature, verify the scan tool Trans Fluid Temp. parameter is between -74 and +174掳C (-101 and +345掳

F).

瀚慖f not within the specified range, replace the Q8 control solenoid valve assembly.

2. Operate the vehicle at 64 km/h (40 mph) for 10 minutes. Monitor the Transmission Fluid Temperature parameter and the TCM Temperature

parameter with a scan tool. The Transmission Fluid Temperature parameter should increase by more than 2掳C (3.5掳F). Also, the

Transmission Fluid Temperature parameter and the TCM Temperature parameter should be within 10掳C (18掳F) of each other.

瀚慖f the Transmission Fluid Temperature parameter does not increase by more than 2掳C (3.5掳F) or the Transmission Fluid Temperature

parameter is not within 10掳C (18掳F) of the TCM Temperature parameter, then replace the Q8 control solenoid valve assembly.

3. Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the

conditions that you observed from the Freeze Frame/Failure Records data.

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

* Control solenoid valve assembly replacement. Refer to Control Module References (See: Testing and Inspection/Programming and

Relearning) for replacement, setup, and programming.

* Perform the Service Fast Learn Adapts (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Testing and

Inspection/Programming and Relearning) following all transmission related repairs.

2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 1566

2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 1566

P0712, P0713

The automatic transmission fluid temperature is between 20-150掳C (68-302掳F) for 10 s or more.

Diagnostic Aids

A correct transmission fluid level is required for a proper function. The automatic transmission fluid temperature sensor is located inside the

transmission at the valve body. To ensure that the shown oil temperature is correct, measure the oil temperature with an external thermometer.

Reference Information

Schematic Reference

Automatic Transmission Controls Schematics (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Diagrams/Electrical

Diagrams)

Connector End View Reference

Component Connector End Views (See: Diagrams/Connector Views/Connector End Views By Name)

Description and Operation

Transmission Component and System Description (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Description and

Operation/AF40-6 - Automatic Transmission/Transmission Component and System Description)

Electrical Information Reference

* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit

Testing/Circuit Testing)

* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic

Procedures/Connector Repairs/Connector Repairs)

* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General

Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)

* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring

Repairs/Wiring Repairs)

DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions (See: Diagnostic Trouble Code Descriptions/Powertrain Diagnostic Trouble Code

(DTC) Type Definitions)

Scan Tool Reference

Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information

Circuit/System Verification

1. Perform the Transmission Fluid Level and Condition Check (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Testing

and Inspection/Symptom Related Diagnostic Procedures/AF40-6 - Automatic Transmission/Transmission Fluid Level and Condition Check)

to verify correct fluid level.

2. Engine idling at operating temperature, observe the scan tool Transmission Fluid Temperature parameter. The reading should be between -40

to +215掳C (-40 to +488掳F) and change.

3. Operate the vehicle at about 60 km/h (37 MPH) for 10 min. Verify the scan tool Transmission Fluid Temperature parameter varies by more

than 2掳C (3.5掳F) to verify that the sensor is not stuck.

Circuit/System Testing

Operate the vehicle within the conditions for running and setting the DTC to verify the DTC does not reset. You may also operate the vehicle

within the conditions that you observed from the Freeze Frame/Failure Records data.

Component Testing

Static Test

1. Ignition OFF, remove the K71 Transmission Control Module.

2. Ignition OFF, test for infinite resistance between the low reference circuit terminal 7 X2 and ground.

瀚慖f less than the specified range, replace the wiring harness.

3. Ignition OFF, test for infinite resistance between the signal circuit terminal 8 X2 and ground.

瀚慖f less than the specified range, replace the wiring harness.

4. Test for infinite resistance between each terminal and the low reference circuit terminal 7 X2 and also to the signal circuit terminal 8 X2.

2010 Cadillac Truck Escalade AWD V8-6.2L Page 2350

DTC P0711, P0712, or P0713

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 P0711

- Transmission Fluid Temperature (TFT) Sensor Performance

DTC P0712

- Transmission Fluid Temperature (TFT) Sensor Circuit Low Voltage

DTC P0713

- Transmission Fluid Temperature (TFT) Sensor Circuit High Voltage

Diagnostic Fault Information

Typical Scan Tool Data

Circuit/System Description

The primary source of heat in the transmission is the drive motor generators. The drive motor generators are cooled by the transmission fluid. Hot

fluid exits the drive motor generators and flows to the transmission cooler supply line. The supply line connects to the cooler, which is in front of

the radiator. The transmission fluid cooler pipe assembly is equipped with an internal thermostat that opens at 80锟斤拷C (176锟斤拷F) for optimum

transmission operation and fuel economy. The transmission cooler pipe thermostat is part of the transmission fluid cooler pipe assembly, located

near the transmission and is not serviced separately. From the cooler, the fluid returns through the transmission fluid cooler pipe assembly and

enters the lubrication circuits. After lubricating the internal components, the fluid returns to the oil pan. The transmission fluid temperature sensor is

located in the control solenoid valve assembly and is not serviced separately.

Conditions for Running the DTC

* No OSS DTCs P0721, P0722, or P0723, P077B, P215C.

* The engine run time is greater than 5 seconds.

* The system voltage is 11-18 V.

* The estimated drive motor power loss is greater than 0.4 kw for 200 seconds.

* The OSS is greater than 200 RPM for 5 seconds.

P0711

* The Trans. Fluid Temp. parameter is -50 to +21锟斤拷C (-58 to +70锟斤拷F) at start up.

* The ECT is greater than 70锟斤拷C (158锟斤拷F).

* The ECT is greater than 55锟斤拷C (131锟斤拷F) at start up.

* The vehicle speed is greater than 8 km/h (5 mph) for 300 seconds.

* The vehicle speed is less than 200 km/h (124 mph) for 5 seconds.

* The TCM temperature parameter is -49 to +169锟斤拷C (-56 to +336锟斤拷F).

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2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 1573

P0712

The TFT is less than -74掳C (-101掳F) for 1 minute.

P0713

The TFT is 174掳C (345掳F) or greater for 1 minute.

Action Taken When the DTC Sets

* DTCs P0711, P0712, and P0713 are Type B DTCs.

* The TCM defaults the TFT to the TCM Temperature.

Conditions for Clearing the DTC

DTCs P0711, P0712, and P0713 are Type B DTCs.

Diagnostic Aids

The transmission control module (TCM) temperature sensor is located inside of the control solenoid valve assembly and its output should resemble

that of the transmission fluid temperature (TFT) sensor's output.

Reference Information

Connector End View Reference

* Component Connector End Views (See: Diagrams/Connector Views/Connector End Views By Name)

* Inline Harness Connector End Views (See: Diagrams/Connector Views/Multiple Junction Connector/Connector End Views By Number)

Description and Operation

Electronic Component Description (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Description and Operation/6T70/6T75 -

Automatic Transmission/Electronic Component Description) for control solenoid valve assembly

Electrical Information Reference

* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit

Testing/Circuit Testing)

* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic

Procedures/Connector Repairs/Connector Repairs)

* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General

Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)

* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring

Repairs/Wiring Repairs)

DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions (See: Diagnostic Trouble Code Descriptions/Powertrain Diagnostic Trouble Code

(DTC) Type Definitions)

Scan Tool Reference

Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information

Circuit/System Verification

1. Engine idling at operating temperature, verify the scan tool Trans Fluid Temp. parameter is between -74 and +174掳C (-101 and +345掳F).

瀚慖f not within the specified range, replace the control solenoid valve assembly.

2. Operate the vehicle at 64 km/h (40 mph) for 10 minutes. Monitor the TCM Temperature, TCM Power up Temperature, and the Trans. Fluid

Temp. parameters with a scan tool. The TCM Temperature and the Trans. Fluid Temp. parameters should be within 25掳C (45掳F) of each

other, and the Trans. Fluid Temp. and TCM Power up Temperature parameters should be within 25掳C (45掳F) of each other.

瀚慖f both are greater than the specified range, replace the control solenoid valve assembly.

3. Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the

conditions that you observed from the Freeze Frame/Failure Records data.