( TF09E00K801000R5301FAAT00 )
VSA DTC Troubleshooting: 53-01, 53-12
DTC 53-01:
 Motor Relay Stuck ON 1
DTC 53-12:
 Motor Relay Stuck ON 2
  1. Turn the ignition switch to ON (II).
  1. Clear the DTC with the HDS.
  1. Turn the ignition switch to LOCK (0), then turn it to ON (II) again.
  1. Check for DTCs with the HDS.
Is DTC 53-01 or 53-12 indicated?
YES -
Go to Step 5 .
NO -
Intermittent failure, the system is OK at this time. Check for loose terminals at the VSA modulator-control unit 36P connector. Refer to intermittent failures troubleshooting. ■
  1. Turn the ignition switch to LOCK (0).
  1. Check for continuity between VSA modulator-control unit 36P connector terminal No. 36 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 (G402 *1 , G203 *2 ).■
*1: LHD model
*2: RHD model
  1. Reconnect the VSA modulator-control unit 36P connector.
  1. Turn the ignition switch to LOCK (0), then turn it to ON (II) again.
  1. Check for DTCs with the HDS.
Is DTC 53-01 or 53-12 indicated?
YES -
Check for loose terminals in the VSA modulator-control unit 36P connector. If the VSA modulator-control unit was updated, substitute a known-good VSA modulator-control unit, then retest. If the VSA modulator-control unit was substituted, go to Step 1 .
NO -
If the VSA modulator-control unit was updated, troubleshooting is complete. If the VSA modulator-control unit was substituted, replace the original VSA modulator-control unit. If any other DTCs are indicated, go to the indicated DTCs troubleshooting.■