DTC 53
DTC 53: Motor Stuck ON1. Turn the ignition switch ON (II).
Is the pump motor working?
YES - Replace the VSA modulator-control unit.
NO - Go to step 2.
2. Turn the ignition switch OFF.
3. Disconnect the VSA modulator-control unit 46P connector.
4. Check for continuity between VSA modulator-control unit 46P connector terminal No. 46 and body ground.
Is there continuity?
YES - Go to step 5.
NO - Repair open in the wire between the VSA modulator-control unit and body ground (G202).
5. Reconnect the VSA modulator-control unit 46P connector.
6. Turn the ignition switch ON (II). Clear the DTC with the HDS.
7. Test-drive the vehicle. Drive the vehicle at 10 mph (15 km/h) or more, and the engine speed is 2,500 rpm or more.
8. Check for DTCs with the HDS.
Is DTC 53 indicated?
YES - Check for loose terminals in the VSA modulator-control unit 46P connector. Check for a loose connection at G202. If necessary, substitute a known-good VSA modulator-control unit and retest.
NO - Intermittent failure, the system is OK at this time. Cheek for loose terminals at the VSA modulator-control unit 46P connector. Check for a loose connection at G202. Refer to intermittent failures troubleshooting.