Pinpoint Test H: The Yellow Anti-Lock Brake System (Abs) Module Warning Indicator Is Always On
WARNING: This page is about a different car, the 2005 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.
- H1 CHECK FOR DTCs
- Connect the diagnostic tool.
- Key in ON position.
- Retrieve the ABS module DTCs.
- Are any DTCs present?
- Yes : REFER to the ANTI-LOCK BRAKE SYSTEM (ABS) MODULE DIAGNOSTIC TROUBLE CODE (DTC) INDEX .
- No : GO to H2.
- H2 CARRY OUT THE INSTRUMENT CLUSTER ABS WARNING INDICATOR ACTIVE COMMAND
- Enter the following diagnostic mode on the diagnostic tool: Instrument Cluster Active Command.
- Select the instrument cluster indicator lamp control active command. Command all warning lamps ON then OFF.
- Does the yellow ABS warning indicator continue to illuminate?
- H3 CHECK FOR CORRECT INSTRUMENT CLUSTER MODULE 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.
- H4 CHECK FOR CORRECT ABS MODULE OPERATION
- Disconnect the ABS connector.
- Check for:
- Corrosion
- Pushed-out pins
- Connect the ABS 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 ABS module. REFER to ANTI-LOCK BRAKE SYSTEM (ABS) MODULE . 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.