Pinpoint Test Aa: The Low Fuel Indicator Is Never/Always On (Base Cluster Only)

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

AA1 CHECK THE FUEL GAUGE OPERATION
- Key in ON position.
- Verify that the fuel gauge operates correctly.
- Does the fuel gauge operate correctly?
1. YES : Go to AA2.
2. NO : If not equipped with all wheel drive (AWD), go to Pinpoint Test A .
  If equipped with AWD, go to Pinpoint Test B .
AA2 CARRY OUT THE INSTRUMENT CLUSTER WARNING LAMPS AND CHIME ACTIVE COMMAND USING THE SCAN TOOL
- Key in ON position.
- Enter the following diagnostic mode on the diagnostic tool: Instrument Cluster Active Command
- Enter the instrument cluster active command mode and select FUEL_LOW. Command the low fuel indicator on and off. Observe the low fuel indicator.
- Does the low fuel indicator illuminate when commanded on, and turn off when commanded off?
1. YES : The system is operating normally at this time. The fuel level must be below 1/8 tank before the low fuel indicator is turned on.
2. NO : Go to AA3.
AA3 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 (IC) . 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.