Pinpoint Test J: The Anti-Lock Brake System (Abs) Warning Indicator Is Never/Always On

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

J1 RETRIEVE THE RECORDED DTCs FROM THE ABS MODULE CONTINUOUS AND ON-DEMAND SELF-TESTS
- Check for recorded ABS module DTCs.
- Are any ABS module DTCs present?
1. YES : REFER to VEHICLE DYNAMIC SYSTEMS article.
2. NO : Go to J2.
J2 CARRY OUT THE INSTRUMENT CLUSTER OUTPUT STATE CONTROL USING THE SCAN TOOL
- Key in ON position.
- Enter the following diagnostic mode on the diagnostic tool: Instrument Cluster Output State Control
- Enter the instrument cluster output state control and select ABS_LAMP. Command the ABS warning indicator on then off and observe the ABS warning indicator.
- Does the ABS warning indicator illuminate when commanded on and turn off when commanded off?
1. YES : Go to J3.
2. NO : Go to J4.
J3 CHECK FOR CORRECT ABS MODULE OPERATION
- Disconnect the ABS module connector.
- Check for:
  - corrosion
  - damaged pins
  - pushed-out pins
- Connect the ABS module 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 ABS module. REFER to VEHICLE DYNAMIC SYSTEMS article. 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.
J4 CHECK FOR CORRECT INSTRUMENT CLUSTER OPERATION
- Disconnect all the instrument cluster connectors.
- Check for:
  - corrosion
  - damaged pins
  - 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?
1. YES : INSTALL a new instrument cluster. REFER to Instrument Cluster (IC) in this article. 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.