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

WARNING: This page is about a different car, the 2006 Mercury Montego, 2006 Ford Freestyle, and 2006 Ford Five Hundred. However, it is still accessible from the selected car via links, so may be relevant.

Q1 VERIFY THE OPERATION OF THE ABS
- Road test the vehicle and verify the ABS is functioning correctly.
- Is the ABS functioning correctly?
Yes: GO to Q2.

No: REFER to ANTI-LOCK CONTROL to continue diagnosis of the ABS system.
Q2 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 ABS warning indicator.
- Does the ABS warning indicator illuminate when triggered on and turn off when triggered off?
Yes: GO to Q3.

No: GO to Q4.
Q3 CHECK FOR CORRECT ABS MODULE OPERATION
- Disconnect the ABS module connector.
- Check for:
  - corrosion
  - 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?
Yes: INSTALL a new ABS module. REFER to REMOVAL AND INSTALLATION . 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.
Q4 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.