ABS Indicator or VSA Indicator Does Not Go Off, and No DTCs Are Stored

ABS indicator or VSA indicator does not go off, and no DTCs are stored
1. Check for the communication between the vehicle and the HDS.
Is there the communication?
YES - Check for loose terminals in the gauge control module 36P connector. 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 the VSA system only, go to step 2.

2. Turn the ignition switch OFF.
3. Check the No. 18 (30 A) fuse in the under-hood fuse/relay box.
Is the fuse blown?
YES - Install a new No. 18 (30 A) fuse, and recheck. If the fuse continues to blow, check for short to body ground in the wire between the No. 18 (30 A) fuse in the under-hood fuse/relay box and the VSA modulator-control unit. If necessary, substitute a known-good VSA modulator-control unit, and retest.
NO - Reinstall the fuse, then go to step 4.

4. Check the No. 4 (10 A) fuse in the under-dash fuse/ relay box.
Is the fuse blown?
YES - Install the new No. 4 (10 A) fuse, and recheck. If the fuse continues to blow, check for short to body ground in the wire between the No. 4 (10 A) fuse in the under-dash fuse/relay box and the VSA modulator-control unit. If necessary, substitute a known-good VSA modulator-control unit, and retest.
NO - Go to step 5.

5. Disconnect the VSA modulator-control unit 47P connector.
6. Measure voltage between VSA modulator-control unit 47P connector terminal No. 32 and body ground.





Is there battery voltage?
YES - Go to step 7.
NO - Repair open in the wire between the No. 18 (30 A) in the under-hood fuse/relay box and the VSA modulator-control unit.

7. Turn the ignition switch ON (II).
8. Measure voltage between VSA modulator-control unit 47P connector terminal No. 4 and body ground.





Is there battery voltage?
YES - Go to step 9.
NO - Repair open in the wire between the No. 4 (10 A) in the under-dash fuse/relay box and the VSA modulator-control unit. II

9. Turn the ignition switch OFF.
10. Check for continuity between VSA modulator-control unit 47P connector terminal No. 16 and body ground.





Is there continuity?
YES - Check for loose terminals in the VSA modulator-control unit 47P connector, clean terminal G202 and recheck. If necessary, substitute a known-good VSA modulator-control unit, and retest.
NO - Repair open in the wire between the VSA modulator-control unit and body ground (G202).