Pinpoint Test O: The High Beam Indicator Is Never/Always On: Testing
- O1 CHECK THE HIGH BEAM HEADLAMPS
- Key in ON position.
- Turn the headlamp switch to the high beams on position. Observe the high beam headlamps.
- Do the high beam headlamps operate correctly?
- Yes
: GO to O2.
- No
: REFER to EXTERIOR LIGHTING
to continue diagnosis of the high beam headlamps.
- O2 CARRY OUT THE INSTRUMENT CLUSTER WARNING LAMPS AND CHIME ACTIVE COMMAND USING THE DIAGNOSTIC TOOL
- Key in ON position.
- Enter the following diagnostic mode on the scan tool: Instrument Cluster Active Command.
- Select the instrument cluster warning lamps and chime active command. Trigger the all lamps active command on and off. Observe the high beam indicator.
- Does the high beam indicator illuminate when triggered on and turn off when triggered off?
- Yes
: GO to O4.
- No
: GO to O3.
- O3 CHECK FOR CORRECT INSTRUMENT CLUSTER OPERATION
- Disconnect the instrument cluster connector.
- Check for:
- corrosion
- 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?
- 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.
- O4 CHECK FOR CORRECT SJB OPERATION
- Disconnect all the SJB connectors.
- Check for:
- corrosion
- pushed-out pins
- Connect all the SJB 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 SJB. REFER to MULTIFUNCTION ELECTRONIC MODULES
. 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.