Pinpoint Test J: The Yellow Anti-Lock Brake System (Abs) Warning Indicator Is Always On
WARNING: This page is about a different car, the 2006 Mercury Grand Marquis and 2006 Ford Crown Victoria. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
The Flex Probe Kit must be used for all test connections. Use of standard multimeter probes may damage wiring terminals.
- J1 CHECK THE ANTI-LOCK BRAKE SYSTEM (ABS) MODULE FOR DTCs
- Connect the scan tool.
- Key in ON position.
- Using the diagnostic tool, retrieve and document continuous DTCs for the ABS module.
- Are DTCs retrieved?
Yes : GO to ABS MODULE DIAGNOSTIC TROUBLE CODE (DTC) INDEX .
No : GO to J2.
- J2 CHECK THE COMMUNICATIONS TO THE INSTRUMENT CLUSTER
- Key in ON position.
- Using the diagnostic tool, check the communication with the instrument cluster.
- Does the diagnostic tool communicate with the instrument cluster?
Yes : GO to J3.
No : REFER to MODULE COMMUNICATIONS NETWORK .
- J3 CHECK FOR CORRECT INSTRUMENT CLUSTER OPERATION
- Disconnect the instrument cluster connector.
- Check for:
- corrosion.
- pushed-out pins.
- spread terminals.
- 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 . CLEAR the DTCs. REPEAT the self-test.
No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the self-test.