Manufacturer Code Charts: 87

VSA DTC Troubleshooting: 87

DTC 87: Current Flow into Wheel Speed Sensor Input Amplifier

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

2. Clear the DTC with the HDS.

3. Turn the ignition switch to LOCK (0), then turn it to ON (II).

4. Check for DTCs with the HDS.

Do the VSA and ABS indicators come on, and are DTCs 11, 13, 15, 17 indicated?
YES - Do the DTC 11, 13, 15, and/or 17 troubleshooting. VSA System

NO - Go to step 5.


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

6. Disconnect the VSA modulator-control unit 46P connector.

7. Start the engine.

8. Measure the voltage between body ground and all the wheel speed sensor +B and GND terminals of the VSA modulator-control unit 46P connector individually (see table).





Is there any voltage?
YES - Repair short to power in the wires between the VSA modulator-control unit and the wheel speed sensor. After repair, go to step 9.

NO - Check for loose or poor connections in the VSA modulator-control unit 46P connector and wheel speed sensor 2P connector. If connections are good, replace the VSA modulator-control unit. Service and Repair






9. Clear the DTCs with the HDS.

10. Check for DTCs with the HDS.

Does the VSA and ABS indicators come on, and is DTC 22 indicated?
YES - Check for loose or poor connections in the VSA modulator-control unit 46P connector. If connections are good, replace the VSA modulator-control unit. Service and Repair

NO - The system is OK at this time.