U0236

U0236-LOST COMMUNICATION WITH COLUMN LOCK MODULE





For a complete wiring diagram, refer to the Wiring Information Electrical Diagrams.

- When Monitored:
Continuously.

- Set Condition:
If the Wireless Ignition Node (WIN) does not receive the correct response message back from the Steering Column Lock Module.





1. INTERMITTENT DIAGNOSTIC TROUBLE CODE (DTC)
1. Using the scan tool, erase the current WIN DTCs.
2. Turn the ignition off.
3. Arm the Vehicle Theft and Security System (VTSS) and wait one minute.
4. Disarm the VTSS and turn the ignition on.

Does the scan tool display the same DTC?

Yes

- Go To 2

No

- The condition that caused this symptom is currently not present. Inspect the related wiring harness for a possible intermittent condition. Look for any chafed, pierced, pinched or partially broken wires.
- Perform the WIN VERIFICATION TEST. Vehicle Theft Security Verification Tests.

2. (A106) FUSED B(+) CIRCUIT OPEN




1. Gain access to the Steering Column Lock Module.
2. Disconnect the Steering Column Lock Module connector.
3. Using a 12-volt test light connected to ground, check the (A106) Fused B(+) circuit in the Steering Column Lock Module connector.

Does the test light illuminate brightly?

Yes

- Go To 3

No

- Repair the (A106) Fused B(+) circuit for an open.
- Perform the WIN VERIFICATION TEST. Vehicle Theft Security Verification Tests.

3. (A892) IGNITION SWITCH OUTPUT (KEY-IN) CIRCUIT OPEN




1. Make sure the ignition key is fully inserted into the ignition switch.
2. Using a 12-volt test light connected to ground, check the (A892) Ignition Switch Output (Key-In) circuit in the Steering Column Lock Module connector.

Does the test light illuminate brightly?

Yes

- Go To 4

No

- Repair the (A892) Ignition Switch Output (Key-In) circuit for an open.
- Perform the WIN VERIFICATION TEST. Vehicle Theft Security Verification Tests.

4. (Z906) GROUND CIRCUIT OPEN




1. Using a 12-volt test light connected to 12-volts, check the (Z906) Ground circuit at the Steering Column Lock Module connector.

Does the test light illuminate brightly?

Yes

- Go To 5

No

- Repair the (Z906) Ground circuit for an open.
- Perform the WIN VERIFICATION TEST. Vehicle Theft Security Verification Tests.

5. (D508) COM-LIN TIRE PRESSURE MONITOR LAN CIRCUIT OPEN




1. Disconnect the WIN harness connector.
2. Measure the resistance of the (D508) COM-LIN Tire Pressure Monitor LAN circuit between the WIN and the Steering Column Lock Module connectors.

Is the resistance below 1.0 Ohms?

Yes

- Replace the Steering Column Lock Module.
- Perform the WIN VERIFICATION TEST. Vehicle Theft Security Verification Tests.

No

- Repair the (D508) Tire Pressure Bus circuit for an open.
- Perform the WIN VERIFICATION TEST. Vehicle Theft Security Verification Tests.