ABS Indicator Does Not Go Off, and No DTCs Are Stored
ABS indicator does not go off, and no DTCs are stored1. Check for communication between the vehicle and the HDS.
Is there communication?
YES - Check for loose terminals in the gauge control module connector C (40P). If necessary, substitute a known-good gauge control module, then recheck. If it is OK, replace the original gauge control module.
NO - If the HDS does not communicate with all the systems of the vehicle, troubleshoot the DLC circuit. If the HDS does not communicate with only ABS, go to step 2.
2. Check the No. 25 (7.5 A) fuse in the under-dash fuse/relay box.
Is the fuse blown?
YES - Install the new No. 25 (7.5 A) fuse, and recheck. If the fuse continues to blow, check for short to body ground in the wire between the No. 25 (7.5 A) fuse in the under-dash fuse/relay box and the ABS modulator-control unit. If necessary, substitute a known-good ABS modulator-control unit, and retest.
NO - Reinstall a checked fuse, then go to step 3.
3. Turn the ignition switch OFF.
4. Disconnect the ABS modulator-control unit 25P connector.
5. Turn the ignition switch ON (II).
6. Measure voltage between ABS modulator-control unit 25P connector terminal No. 16 and body ground.
Is there battery voltage?
YES - Go to step 7.
NO - Repair open in the wire between the No. 25 (7.5 A) in the under-dash fuse/relay box and the ABS modulator-control unit.
7. Turn the ignition switch OFF.
8. Check for continuity between ABS modulator control unit 25P connector terminal No. 24 and body ground.
Is there continuity?
YES - Check for loose terminals in the ABS modulator-control unit 25P connector, clean terminal G202 and recheck. If necessary, substitute a known-good ABS modulator-control unit, and retest.
NO - Repair open in the wire between the ABS modulator-control unit and body ground (G202).