B169C

B169C-CARGO LAMP SWITCH STUCK





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

- When Monitored:
With the Cargo Lamps on.

- Set Condition:
When the Cluster detects a low condition on the Cargo Lamp Return circuit.





1. CHECK FOR AN ACTIVE DTC
1. Turn the ignition on.
2. Operate the Cargo Lamp Switch several times.
3. With the scan tool, read DTCs.

Does the scan tool display this DTC as active?

Yes

- Go To 2

No

- The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

2. HEADLAMP SWITCH SHORTED
1. With the scan tool, erase DTCs.
2. Disconnect the Headlamp Switch connector.
3. With the scan tool, read DTCs.

Does the scan tool display this DTC as active?

Yes

- Go To 3

No

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

3. (L914) CARGO LAMP SWITCH RETURN CIRCUIT SHORTED TO GROUND




1. Turn the ignition off.
2. Disconnect the Cluster C3 harness connector.
3. Measure the resistance between ground and the (L914) Cargo Lamp Switch Return circuit.

Is the resistance below 5 Ohms?

Yes

- Repair the (L914) Cargo Lamp Switch Return circuit for a short to ground.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Go To 4

4. (L914) CARGO LAMP SWITCH RETURN CIRCUIT SHORT TO THE (Z910) GROUND CIRCUIT




1. Measure the resistance between the (L914) Cargo Lamp Switch Return circuit and the (Z407) Ground circuit.

Is the resistance below 5 Ohms?

Yes

- Repair the (L914) Cargo Lamp Switch Return circuit for a short to the (Z407) ground circuit.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

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