Pinpoint Test O: The RH Turn Indicator Is Inoperative
WARNING: This page is about a different car, the 2005 Ford RV Cutaway, 2005 Ford Econoline, and 2005 Ford E450 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
- O1 CHECK THE RH TURN SIGNAL LAMPS
- Key in ON position.
- Operate the RH turn signal. Observe the exterior RH turn lamps.
- Do the RH turn lamps operate correctly?
- Yes : GO to O2.
- No : REFER to EXTERIOR LIGHTING to continue diagnosis of the turn signals.
- O2 CHECK CIRCUIT 2 (WH/LB) FOR VOLTAGE
- Key in OFF position.
- Disconnect: Instrument Cluster C220a.
- Key in ON position.
- Operate the RH turn signal.
- Measure the voltage between instrument cluster C220a-18, circuit 2 (WH/LB), harness side and ground.
- Does the voltage alternate between 0 volts and greater than 10 volts?
- Yes : GO to O3.
- No : REPAIR the circuit. TEST the system for normal operation.
- O3 CHECK FOR CORRECT INSTRUMENT CLUSTER OPERATION
- Disconnect all the instrument cluster connectors.
- Check for:
- Corrosion
- Pushed-out pins
- Connect all the instrument cluster connectors and make sure they seat correctly.
- Operate the system and verify the concern is still present.
- Is the concern still present?
- Yes : INSTALL a new instrument cluster. REFER to INSTRUMENT CLUSTER . TEST the system for normal operation.
- 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.