Pinpoint Test C: The Turn Signal On Warning Is Inoperative

WARNING: This page is about a different car, the 2007 Mercury Mariner and 2007 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.

C1 VERIFY THE TURN SIGNAL OPERATION
- Verify the turn signal operation.
- Do the turn signals operate correctly?
1. YES : Go to C2.
2. NO : REFER to EXTERIOR LIGHTING article to continue diagnosis of the turn signals.
C2 CHECK THE INSTRUMENT CLUSTER CONFIGURATION
- Verify the instrument cluster is configured for turn signal on.
- Is the instrument cluster configured correctly?
1. YES : Go to C3.
2. NO : REFER to MODULE CONFIGURATION article to configure the instrument cluster.
C3 CHECK THE ODOMETER FOR CORRECT OPERATION
- Drive the vehicle and monitor the odometer for correct operation.
- Does the odometer operate correctly?
1. YES : Go to C4.
2. NO : REFER to INSTRUMENT CLUSTER article to continue diagnosis of the odometer.
C4 CHECK FOR CORRECT INSTRUMENT CLUSTER OPERATION
- Disconnect the instrument cluster connector.
- Check for:
  - corrosion
  - damaged pins
  - pushed-out pins
- Connect the instrument cluster connector and make sure it seats correctly.
- Operate the system and verify the concern is still present.
- Is the concern still present?
1. YES : INSTALL a new instrument cluster. REFER to INSTRUMENT CLUSTER article. TEST the system for normal operation.
2. NO : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. TEST the system for normal operation.