2010 Cadillac Truck SRX AWD V6-3.0L Page 864

2010 Cadillac Truck SRX AWD V6-3.0L Page 864

Scan Tool Reference

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

Special Tools

J-46079 Tire Pressure Monitor Diagnostic Tool

Circuit/System Verification

1. Using the J-46079 , activate each tire pressure sensor and record each sensors transmission data and physical location. Verify J-46079

displays the 8-digit ID number, accurate tire pressure +/- 27.6 kPa (4 psi), Learn Mode, and at least a 1/4 graph signal strength displayed.

瀚慖f any of the parameters listed above are not displayed, replace the suspect tire pressure sensor.

2. With the scan tool, verify tire pressure sensors ID and locations displayed on the scan tool match the IDs and locations recorded from the

special tool.

瀚慖f the IDs and locations do not match, perform the Tire Pressure Indicator Sensor Learn (See: Instrument Panel, Gauges and Warning

Indicators/Tire Monitoring System/Tire Pressure Sensor/Testing and Inspection).

3. Enable the TPM learn mode. Use the J-46079 in simulate mode to learn 4 simulated sensor transmissions into the BCM. Verify that all 4

simulated sensor locations, IDs, and tire pressures displayed on the TPM special tool match the corresponding scan tool parameters

displayed.

瀚慖f the scan tool does not match, replace the K9 BCM.

4. Test drive the vehicle above 40 km/h (25 mph) for greater than 2 minutes. With the scan tool, observe the suspect Pressure Sensor Mode data

parameter. Verify the sensor mode changes to Rolling.

瀚慖f the Pressure Sensor Mode does not change, replace the suspect tire pressure sensor.

Repair Instructions

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

* Tire Pressure Indicator Sensor Replacement (See: Instrument Panel, Gauges and Warning Indicators/Tire Monitoring System/Tire Pressure

Sensor/Service and Repair)

* Tire Pressure Indicator Sensor Learn (See: Instrument Panel, Gauges and Warning Indicators/Tire Monitoring System/Tire Pressure

Sensor/Testing and Inspection)

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

C0755

DTC C0750, C0755, C0760, or C0765

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 Descriptor

DTC C0750 03

- Left Front Tire Pressure Sensor Low Voltage

DTC C0750 29

- Left Front Tire Pressure Sensor Too Few Pulses

DTC C0750 39

- Left Front Tire Pressure Sensor Internal Malfunction

DTC C0755 03

- Right Front Tire Pressure Sensor Low Voltage