VSA System

VSA DTC Troubleshooting: 12-12, 14-12, 16-12, 18-12

DTC 12-12:

Right-Front Wheel Speed Sensor Short to the Other Sensor Circuit

DTC 14-12:

Left-Front Wheel Speed Sensor Short to the Other Sensor Circuit

DTC 16-12:

Right-Rear Wheel Speed Sensor Short to the Other Sensor Circuit

DTC 18-12:

Left-Rear Wheel Speed Sensor Short to the Other Sensor Circuit

1. Turn the ignition switch to ON (II).

2. Clear the DTC with the HDS.

3. Test-drive the vehicle at 13 mph (20 km/h) or more, and go a distance of 328 ft (100 m) or more.

NOTE: Drive the vehicle on the road, not on a lift.

4. Check for DTCs with the HDS.

Is DTC 12-12, 14-12, 16-12, or 18-12 indicated?

YES -

Go to step 5.

NO -

Intermittent failure, the system is OK at this time. Check for loose terminals between the wheel speed sensor 2P connector and the VSA modulator-control unit 37P connector. Refer to intermittent failures troubleshooting.�

5. Turn the ignition switch to LOCK (0).

6. Disconnect VSA modulator-control unit 37P connector.

7. Check for continuity between the appropriate VSA modulator-control unit 37P connector wheel speed sensor GND terminals (see table).










Is there continuity?

YES -

Repair a short in the wires between the appropriate wheel speed sensor and the VSA modulator-control unit.�

NO -

Check for loose terminals in the VSA modulator-control unit 37P connector. If necessary, substitute a known-good VSA modulator-control unit Service and Repair, and retest.�