U0236
U0236-NO RESPONSE COLUMN-LOCK MODULE
For a complete wiring diagram refer to Diagrams/Electrical.
Diagnostic Test
1. DETERMINING IF DTC IS CURRENT
With the scan tool, read and record the SKREEM DTCs.
With the scan tool, erase the SKREEM DTCs
NOTE: Perform the following test several times to ensure the DTC is current.
Turn the ignition off.
Wait 10 seconds.
Turn the ignition on.
With the scan tool, read the SKREEM DTCs.
Does the scan tool display the DTC that was previously erased?
Yes
- Go To 2
No
- The conditions that set the DTC are no longer present. Inspect the wiring harness and related connectors for damage, pin push out or corrosion.
2. (A935) FUSED B(+) CIRCUIT OPEN
Turn the ignition off.
Disconnect the Steering Column-Lock Module harness connector.
Using a 12-volt test light connected to ground, probe the (A935) Fused B(+) circuit.
Does the test light illuminate brightly?
Yes
- Go To 3
No
- Repair the (A935) Fused B(+) circuit for an open.
- Perform SKREEM VERIFICATION TEST. Vehicle Theft Security Verification Tests
3. (A306) FUSED B(+) CIRCUIT OPEN
Using a 12-volt test light connected to ground, probe the (A306) Fused B(+) circuit.
Does the test light illuminate brightly?
Yes
- Go To 4
No
- Repair the (A306) Fused B(+) circuit for an open.
- Perform SKREEM VERIFICATION TEST. Vehicle Theft Security Verification Tests
4. (Z906) GROUND CIRCUIT OPEN
Using a 12-volt test light connected to 12-volts, check the (Z906) Ground circuit.
Does the test light illuminate brightly?
Yes
- Go To 5
No
- Repair the (Z906) Ground circuit for an open.
- Perform SKREEM VERIFICATION TEST. Vehicle Theft Security Verification Tests
5. (D508) COM-LIN (TPM) LAN CIRCUIT OPEN
Disconnect the SKREEM/WCM harness connector.
Measure the resistance of the (D508) COM-LIN (TPM) LAN circuit between the SKREEM/WCM harness connector and the Steering Column-Lock Module connector.
Is resistance below 5.0 ohms?
Yes
- Replace the Sentry Key Remote Entry Module/Steering Column-Lock Module.
- Perform the SKREEM VERIFICATION TEST. Vehicle Theft Security Verification Tests
No
- Repair the (D508) COM-LIN (TPM) LAN circuit for an open.
- Perform the SKREEM VERIFICATION TEST. Vehicle Theft Security Verification Tests