VSA System Symptom Troubleshooting - ABS indicator, brake system indicator, and VSA indicator do not go off at same time
ABS indicator, brake system indicator, and VSA indicator do not go off at same time
  1. Turn the ignition switch to LOCK (0).
  1. Check the No. 4 (7.5 A) fuse in the under-dash fuse/relay box.
Is the fuse blown?
YES -
Install a new No. 4 (7.5 A) fuse, and recheck.■
NO -
Reinstall the checked fuse, then go to Step 3 .
  1. Disconnect the VSA modulator-control unit 46P connector.
  1. Turn the ignition switch to ON (II).
  1. Measure the voltage between VSA modulator-control unit 46P connector terminal No. 40 and body ground.
Is there battery voltage?
YES -
Go to Step 6 .
NO -
Repair open in the wire between the No. 4 (7.5 A) fuse in the under-dash fuse/relay box and the VSA modulator-control unit.■
  1. Turn the ignition switch to LOCK (0).
  1. Check for continuity between VSA modulator-control unit 46P connector terminal No. 43 and body ground.
Is there continuity?
YES -
Go to Step 8 .
NO -
Repair open in the wire between the VSA modulator-control unit and body ground (G202).■
  1. Short the SCS line with the HDS.
  1. Disconnect the ECM connector A (49P) (L13Z1 engine model) or ECM connector A (44P) (except L13Z1 engine model).
  1. Check for continuity between VSA modulator-control unit 46P connector terminals No. 38, No. 39 and ECM connector A (49P) terminals No. 4, No. 3 (L13Z1 engine model) or ECM connector A (44P) terminals No. 37, No. 36 (except L13Z1 engine model) individually.
Is there continuity?
YES -
Check for loose terminals in the VSA modulator-control unit 46P connector. If necessary, substitute a known-good VSA modulator-control unit and retest.■
NO -
Repair open in the wire between the ECM and the VSA modulator-control unit.■