B169C
B169C-CARGO LAMP SWITCH STUCK
For a complete wiring diagram refer to Diagrams/Electrical.
- When Monitored:
- With the Cargo Lamps on.
- Set Condition:
- When the CCN detects a low condition on the Cargo Lamp Return circuit.
Diagnostic Test
1. TEST FOR INTERMITTENT CONDITION
With the scan tool, record and erase DTC's
Operate the Fog Lamp Switch several times.
Turn the ignition on and wait 30 seconds.
With the scan tool, read DTC's.
Does the scan tool display: B169C CARGO LAMP SWITCH STUCK?
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 BODY VERIFICATION TEST - VER 1. Body Verification Test
2. HEADLAMP SWITCH SHORTED
With the scan tool, erase DTC's.
Disconnect the Headlamp Switch connector.
With the scan tool, read DTC's.
Does the scan tool display: B169C CARGO LAMP SWITCH STUCK?
No
- Replace the Headlamp Switch.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test
Yes
- Go To 3
3. (L914) CARGO LAMP SWITCH RETURN CIRCUIT SHORT TO GROUND
Turn the ignition off.
Disconnect the Cluster C3 harness connector.
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 BODY VERIFICATION TEST - VER 1. Body Verification Test
No
- Go To 4
4. (L914) CARGO LAMP SWITCH RETURN CIRCUIT SHORT TO (Z407) GROUND CIRCUIT
Turn the ignition off.
Disconnect the Cluster C3 harness connector.
Disconnect the Headlamp harness connector.
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 BODY VERIFICATION TEST - VER 1. Body Verification Test
No
- Replace the Instrument Cluster.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test