ABS Indicator Circuit Troubleshooting - With VSA

ABS indicator does not come on
  1. Turn the ignition switch ON (II), and watch the ABS indicator.
Does the ABS indicator come on for several seconds?
YES -
The system is OK at this time.■
NO -
Go to Step 2 .
Is the gauge control module OK?
YES -
Go to Step 3 .
NO -
  1. Turn the ignition switch OFF.
  1. Turn the ignition switch ON (II).
Does ABS indicator come on?
YES -
NO -
Check for loose terminals in the gauge control module connectors. If connections are good, replace the gauge control module .■

ABS indicator does not go off, and no DTCs are stored
  1. Check the No. 18 (40 A) fuse in the under-hood fuse/relay box.
Is the fuse OK?
YES -
Reinstall the fuse, and 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 VSA modulator-control unit.
  1. Check the No. 18 (15 A) fuse in the under-dash fuse/relay box.
Is the fuse OK?
YES -
Reinstall the fuse, and 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 VSA modulator-control unit.
  1. Turn the ignition switch OFF.
  1. Disconnect the VSA control unit 47P connector.
  1. Measure the voltage between the VSA control unit 47P connector terminal No. 1 and body ground.
Is there battery voltage?
YES -
Go to Step 6 .
NO -
Repair open in the wire between the No. 18 (40 A) fuse and the VSA modulator-control unit.■
  1. Turn the ignition switch ON (II).

  1. Measure the voltage between the VSA control unit 47P connector terminal No. 38 and body ground.
Is there battery voltage?
YES -
Go to Step 8 .
NO -
Repair open in the wire between the No. 18 (15 A) fuse and the VSA modulator-control unit.■
  1. Turn the ignition switch OFF.

  1. Check for continuity between the VSA control unit 47P connector terminal No. 32 and body ground.
Is there continuity?
YES -
Check for loose terminals in the VSA control unit 47P connector. If necessary, substitute a known-good VSA modulator-control unit, and recheck.■
NO -
Repair open in the wire between the VSA modulator-control unit and body ground (G203).■