B161C
B161C-COURTESY/DOME LAMP CONTROL CIRCUIT HIGHB161C-Courtesy/Dome Lamp Control Circuit High:
WHEN MONITORED
Continuously
SET CONDITION
When the Instrument Cluster detects a short to battery on the Control circuit.
POSSIBLE CAUSES
- (M27) Control circuit
- Instrument cluster
DIAGNOSTIC TEST
1. TEST FOR INTERMITTENT CONDITION
Turn the ignition on.
Clear all CCN DTC's
Turn the Courtesy Lamps on.
With the scan tool, read DTC's.
Q: Does the scan tool read: B161C-COURTESY/DOME LAMP CONTROL CIRCUIT HIGH?
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. M27 COURTESY LAMP CONTROL CIRCUIT
Turn the ignition off.
Disconnect the Instrument Cluster C3 harness connector.
Measure the resistance of the (M27) Courtesy Lamp Control circuit.
Q: Is the resistance above 5.0 ohms?
NO: Repair the (M27) Courtesy Lamp Control circuit. Perform BODY VERIFICATION TEST - VER 1. Body Verification Test
YES: Replace the Instrument Cluster. Perform BODY VERIFICATION TEST - VER 1. Body Verification Test