U113B

U113B-LOST COMMUNICATION WITH SWITCH BANK 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 Switch Bank Module.





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

Does the scan tool display: U113B-LOST COMMUNICATION WITH SWITCH BANK 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 Switch Bank 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 3

No

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

3. (A935) FUSED B+ CIRCUIT OPEN




1. Measure the voltage of the (A935) Fused B+ circuit.

Is the voltage above 10.0 volts?

Yes

- Go To 4

No

- Repair the (A935) Fused B+ circuit for an open.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

4. (Z908) GROUND CIRCUIT OPEN




1. Measure the resistance between ground and the (Z908) Ground circuit.

Is the resistance below 10K Ohms?

Yes

- Replace the Switch Bank.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Repair the (Z908) Ground circuit for an open.
- Perform the BODY VERIFICATION TEST. Body Verification Test.