2010 Cadillac Truck SRX FWD V6-3.0L Page 826

2010 Cadillac Truck SRX FWD V6-3.0L Page 826

Scan Tool Reference

Control Module References (See: Testing and Inspection/Programming and Relearning)

Circuit/System Testing

Note: It is recommended that Component Testing is performed before Circuit/System Testing when diagnosing the actuator because the module

will default and does not supply voltage to the sensor when the DTC is set.

1. Ignition OFF, disconnect the harness connector at the M72 Variable Power Steering Solenoid Valve.

2. Ignition ON, verify that a test lamp illuminates between the control circuit terminal A and ground.

瀚慖f the test lamp does not illuminate, test the control circuit for a short to ground or an open/high resistance.

3. Ignition OFF, connect the test lamp between the control circuit terminal A and the control circuit terminal B.

4. Ignition ON, verify the test lamp briefly illuminates for approximately 1 second, then turns OFF.

瀚慖f the test lamp is always ON, test the control circuit terminal B for a short to ground. If the circuit tests normal, replace the K17

Electronic Brake Control Module (EBCM).

瀚慖f the test lamp is always OFF, test the control circuit terminal B for a short to voltage or an open/high resistance. If the circuit tests

normal, replace the K17 Electronic Brake Control Module (EBCM).

5. If all circuits test normal, test or replace the M72 Variable Power Steering Solenoid Valve.

Component Testing

Static Test

1. Ignition OFF, disconnect the harness connector at the M72 Variable Power Steering Solenoid Valve.

2. Test for 2.5-10 ohm between the control terminals A and B.

瀚慖f not within the specified range, replace the M72 Variable Power Steering Solenoid Valve.

3. Test for infinite resistance between each terminal and the M72 Variable Power Steering Solenoid Valve housing/case.

瀚慖f not the specified value, replace the M72 Variable Power Steering Solenoid Valve.

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests)

* Steering Gear Valve Solenoid Replacement (See: Steering and Suspension/Steering/Steering Gear)

* Steering Gear Replacement (See: Steering and Suspension/Steering/Steering Gear)

* Control Module References (See: Testing and Inspection/Programming and Relearning)

C0460

DTC C0460 or C0710

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 C0460 71

- Steering Position Sensor Invalid Data

DTC C0710 42

- Steering Position Signal Calibration Not Programmed

DTC C0710 5A

- Steering Position Signal Not Plausible