Pinpoint Test M: The High Beam 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.
- M1 CHECK THE HIGH BEAM HEADLAMPS
- Key in ON position.
- Turn the high beam headlamps on. Observe the high beam headlamps.
- Do the high beam headlamps operate correctly?
- Yes : GO to M2.
- No : REFER to EXTERIOR LIGHTING to continue diagnosis of the high beams.
- M2 CHECK CIRCUIT 12 (LG/BK) FOR VOLTAGE
- Key in OFF position.
- Disconnect: Instrument Cluster C220a.
- Key in ON position.
- Measure the voltage between the instrument cluster C220a-12, circuit 12 (LG/BK), harness side and ground.
- Is the voltage greater than 10 volts?
- Yes : GO to M3.
- No : REPAIR the circuit. TEST the system for normal operation.
- M3 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.