2010 Cadillac CTS Sedan AWD V6-3.6L Page 384

2010 Cadillac CTS Sedan AWD V6-3.6L Page 384

瀚慖f greater than specified, test the circuit for a short to voltage.

6. Test for less than 1.0 Ohms between the BCM and the ignition switch on the circuits listed below:

* Ignition terminal 2, X1 and ignition switch terminal 4

* Ignition terminal 21, X1 and ignition switch terminal 3

* Ignition terminal 21, X4 and ignition switch terminal 1

瀚慖f greater than specified, test the circuit for open/high resistance

7. If all circuits test normal, replace the BCM.

Component Testing

Ignition Switch

1. Ignition OFF, disconnect the harness connector at the ignition switch.

2. Verify the resistance between the terminals listed below match for each ignition switch position.

瀚慖f not the specified value, replace the ignition switch.

Repair Instructions

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

* Ignition and Start Switch Replacement (See: Powertrain Management/Ignition System/Sensors and Switches - Ignition System/Ignition

Switch/Service and Repair/Ignition and Start Switch Replacement)

* Control Module References (See: Testing and Inspection/Programming and Relearning) for BCM replacement, setup, and programming

B1441

DTC B1370-B1379, B1380-B1389, or B1440-B1443

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 B1370 01

- Device Ignition 1 (ON and START) Circuit Short to Battery

DTC B1370 06

- Device Ignition 1 (ON and START) Circuit Short to Ground or Open

DTC B1380 01

- Device Ignition ACCESSORY Circuit Short to Battery

DTC B1380 06

- Device Ignition ACCESSORY Circuit Short to Ground or Open

DTC B1440 00

- Power Mode Master Input Circuits Mismatch

2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 97

2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 97

瀚慖f greater than the specified range, test the circuit for a short to voltage.

13. Ignition OFF, test for infinite resistance between the high circuit terminals listed below and ground.

* Driver steering wheel air bag coil connector Stage 1 terminal A X1

* Driver steering wheel air bag coil connector Stage 2 terminal A X2

瀚慖f less than the specified value, test the circuit for a short to ground.

14. Test for infinite resistance between the low circuit terminals listed below and ground.

* Driver steering wheel air bag coil connector Stage 1 terminal B X1

* Driver steering wheel air bag coil connector Stage 2 terminal B X2

瀚慖f less than the specified value, test the circuit for a short to ground.

15. Test for less then 1 ohm between the SDM connector and the air bag connector high circuit terminals listed below.

* Driver steering wheel air bag coil connector Stage 1 terminal A X1 and SDM terminal 4 X1.

* Driver steering wheel air bag coil connector Stage 2 terminal A X2 and SDM terminal 1 X1.

瀚慖f greater than the specified range, test the circuit for an open/high resistance.

16. Test for less then 1 ohm between the SDM connector and the air bag connector low circuit terminals listed below.

* Driver steering wheel air bag coil connector Stage 1 terminal B X1 and SDM terminal 3 X1

* Driver steering wheel air bag coil connector Stage 2 terminal B X2 and SDM terminal 2 X1

瀚慖f greater than the specified range, test the circuit for an open/high resistance.

17. If all circuits test normal, replace the SDM.

Repair Instructions

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

* Steering Wheel Inflatable Restraint Module Coil Replacement (See: Restraints and Safety Systems/Air Bag Systems/Clockspring Assembly

/ Spiral Cable/Service and Repair/Removal and Replacement)

* Steering Wheel Inflatable Restraint Module Replacement (See: Restraints and Safety Systems/Air Bag Systems/Air Bag/Service and

Repair/Removal and Replacement/Steering Wheel Inflatable Restraint Module Replacement)

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

Procedures/Wiring Repairs/SIR/SRS Wiring Repairs)

* Control Module References (See: Testing and Inspection/Programming and Relearning) for SDM replacement, setup, and programming

B0014

DTC B0014-B0045

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 B0014 01

- Driver Side Seat Air Bag Deployment Loop Short to Battery

DTC B0014 02

- Driver Side Seat Air Bag Deployment Loop Short to Ground

DTC B0014 04

- Driver Side Seat Air Bag Deployment Loop Open Circuit

2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 97

2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 97

瀚慖f greater than the specified range, test the circuit for a short to voltage.

13. Ignition OFF, test for infinite resistance between the high circuit terminals listed below and ground.

* Driver steering wheel air bag coil connector Stage 1 terminal A X1

* Driver steering wheel air bag coil connector Stage 2 terminal A X2

瀚慖f less than the specified value, test the circuit for a short to ground.

14. Test for infinite resistance between the low circuit terminals listed below and ground.

* Driver steering wheel air bag coil connector Stage 1 terminal B X1

* Driver steering wheel air bag coil connector Stage 2 terminal B X2

瀚慖f less than the specified value, test the circuit for a short to ground.

15. Test for less then 1 ohm between the SDM connector and the air bag connector high circuit terminals listed below.

* Driver steering wheel air bag coil connector Stage 1 terminal A X1 and SDM terminal 4 X1.

* Driver steering wheel air bag coil connector Stage 2 terminal A X2 and SDM terminal 1 X1.

瀚慖f greater than the specified range, test the circuit for an open/high resistance.

16. Test for less then 1 ohm between the SDM connector and the air bag connector low circuit terminals listed below.

* Driver steering wheel air bag coil connector Stage 1 terminal B X1 and SDM terminal 3 X1

* Driver steering wheel air bag coil connector Stage 2 terminal B X2 and SDM terminal 2 X1

瀚慖f greater than the specified range, test the circuit for an open/high resistance.

17. If all circuits test normal, replace the SDM.

Repair Instructions

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

* Steering Wheel Inflatable Restraint Module Coil Replacement (See: Restraints and Safety Systems/Air Bag Systems/Clockspring Assembly

/ Spiral Cable/Service and Repair/Removal and Replacement)

* Steering Wheel Inflatable Restraint Module Replacement (See: Restraints and Safety Systems/Air Bag Systems/Air Bag/Service and

Repair/Removal and Replacement/Steering Wheel Inflatable Restraint Module Replacement)

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

Procedures/Wiring Repairs/SIR/SRS Wiring Repairs)

* Control Module References (See: Testing and Inspection/Programming and Relearning) for SDM replacement, setup, and programming

B0014

DTC B0014-B0045

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 B0014 01

- Driver Side Seat Air Bag Deployment Loop Short to Battery

DTC B0014 02

- Driver Side Seat Air Bag Deployment Loop Short to Ground

DTC B0014 04

- Driver Side Seat Air Bag Deployment Loop Open Circuit