FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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U0161






U0161-LOST COMMUNICATION WITH COMPASS MODULE





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

- When Monitored:
With the ignition on.

- Set Condition:
The Cluster does not receive information from the Compass Module.





1. CHECK FOR AN ACTIVE DTC
1. Turn the ignition on.
2. With the scan tool, read DTCs.

Does the scan tool display: U0161-LOST COMMUNICATION WITH COMPASS MODULE?

Yes

- Go To 2

No

- Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension.

2. (D506) LIN BUS CIRCUIT OPEN




1. Turn the ignition off.
2. Disconnect the Compass Module harness connector.
3. Turn the ignition on.
4. Measure the voltage of the (D506) LIN BUS circuit.

Is the voltage above 5.0 volts?

Yes

- Go To 4

No

- Go To 3

3. (D506) LIN BUS CIRCUIT OPEN




1. Turn the ignition off.
2. Disconnect the Cluster C3 harness connector.
3. Measure the resistance of the (D506) LIN BUS circuit.

Is the resistance below 5.0 Ohms?

Yes

- Replace the Cluster.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Repair the open in the (D506) LIN BUS circuit.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

4. (F929) FUSED IGNITION SWITCH OUTPUT (RUN) CIRCUIT OPEN




1. Measure the voltage of the (F929) Fused Ignition Switch Output (RUN) circuit.

Is the voltage above 10.0 volts?

Yes

- Go To 5

No

- Repair the open in the (F929) Fused Ignition Switch Output (RUN) circuit.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

5. (Z903) GROUND CIRCUIT OPEN




1. Measure the resistance between ground and the (Z903) Ground circuit.

Is the resistance below 10K Ohms?

Yes

- Replace the Compass Module.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Repair the open in the (Z903) Ground circuit.
- Perform the BODY VERIFICATION TEST. Body Verification Test.