TEST
ACTION
APPLICABILITY
3
Turn the ignition off.
Disconnect the Message Center harness connector.
Turn the ignition on.
Using a 12-volt test light connected to ground, probe the Fused B+ circuit in the
Message Center harness connector.
Does the test light illuminate brightly?
All
Yes
→ Go To 4
No
→ Repair the Fused B+ circuit.
Perform BODY VERIFICATION TEST - VER 1.
4
Turn the ignition off.
Disconnect the Message Center harness connector.
Turn the ignition on.
Using a 12-volt test light connected to 12-volts, probe the Left Indicator Driver circuit
in the Message Center harness connector.
Operate the Multi-Function Switch and turn the Left Indication on.
Does the test light flash on and off?
All
Yes
→ Remove and inspect the Bulb. If OK, replace the Message Center.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 5
5
Turn the ignition off.
Disconnect the Message Center harness connector.
Disconnect the BCM C4 harness connector.
Measure the resistance of the Left Turn Indicator Driver circuit at the Message
Center harness connector to ground.
Is the resistance below 5.0 ohms?
All
Yes
→ Repair the Left Turn Indicator for a short to ground.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 6
6
Turn the ignition off.
Disconnect the Message Center harness connector.
Disconnect the BCM C4 harness connector.
Measure the resistance of the Left Turn Indicator Driver circuit between the BCM
harness connector and the Message Center harness connector.
Is the resistance below 5.0 ohms?
All
Yes
→ Go To 7
No
→ Repair the Left Turn Indicator for an open.
Perform BODY VERIFICATION TEST - VER 1.
7
If there are no possible causes remaining, view repair?
All
Repair
Replace the Body Control Module.
Perform BODY VERIFICATION TEST - VER 1.
636
INSTRUMENT CLUSTER
LEFT TURN SIGNAL INDICATOR OPEN (HIGHLINE) —
Continued