FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

ABS Indicator Does Not GO Off, and No DTCS Are Stored

ABS indicator does not go off, and no DTCs are stored
1. Check the No. 8 (20A) fuse in the under-hood fuse/ relay box, and reinstall the fuse if it is OK.
Is the fuse OK?
YES-Go to step 2.
NO-Replace the fuse, and recheck. If the fuse is blown, check for a short to body ground in this fuse circuit. If the circuit is OK, replace the ABS modulator-control unit.
2. Check the No. 11 (7.5A) fuse in the under-dash fuse/relay box, and reinstall the fuse if it is OK.
Is the fuse OK?
YES-Go to step 3.
NO-Replace the fuse, and recheck. If the fuse is blown, check for a short to body ground in this fuse circuit. If the circuit is OK, replace the ABS modulator-control unit.
3. Disconnect the ABS control unit 31P connector.





4. Measure the voltage between the ABS control unit 31P connector terminal No. 18 and body ground.
Is there battery voltage?
YES-Go to step 5.
NO-Repair open in the wire between the No. 8 (20A) fuse and the ABS control unit.
5. Turn the ignition switch ON (II).





6. Measure the voltage between the ABS control unit 31P connector terminal No. 15 and body ground.
Is there battery voltage?
YES-Go to step 7.
NO-Repair open in the wire between the No. 11 (7.5A) fuse and the ABS control unit.
7. Turn the ignition switch OFF, and reconnect the ABS modulator control unit.
8. Turn the ignition switch ON (II).





9. Check for voltage between the ABS control unit 31P connector terminal No. 19 and body ground.
Is there 0.3 V or more?
YES-Go to step 10.
NO-Repair open in the wire between the ABS control unit and body ground (G202).





10. Connect the ABS control unit 31P connector terminal No. 20 and body ground with a jumper wire.
Does the ABS indicator go off?
YES-Check for loose terminals in the ABS control unit 31P connector. If necessary, substitute a known-good ABS modulator-control unit, and recheck.
NO-Go to step 11.





11. Remove the gauge assembly, and leave the connectors connected. Connect the gauge assembly connector A (22P) terminal No. 12 and body ground with a jumper wire.
Does the ABS indicator go off?
YES-Repair open in the wire between the gauge assembly and the ABS control unit.
NO-Check for loose gauge assembly connectors. If the connectors are OK, replace the printed circuit board in the gauge assembly.