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ABS 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 ABS modulator-control unit 25P connector. Refer to intermittent failures troubleshooting.
  1. Turn the ignition switch to LOCK (0).
  1. Check for continuity between ABS modulator-control unit 25P connector terminal No. 25 and body ground.
Is there continuity?
YES -
Check for loose terminals in the ABS modulator-control unit 25P connector. If necessary, substitute a known-good ABS modulator-control unit, and retest.■
NO -
  • RHD model: Repair open in the wire between the ABS modulator-control unit and body ground (G203).■
  • LHD model: Repair open in the wire between the ABS modulator-control unit and body ground (G402).■