VSA DTC Troubleshooting: 22
DTC 22:
 Current Flow into Wheel Sensor Input Amplify
  1. Turn the ignition switch to ON (II).
  1. Turn the ignition switch to LOCK (0), then turn it to ON (II).
  1. Check for DTCs with the HDS.
Is DTCs 11, 13, 15, and/or 17 indicated?
YES -
Do the DTC 11, 13, 15, and/or 17 troubleshooting. ■
NO -
Go to Step 4 .
  1. Turn the ignition switch to LOCK (0).
  1. Disconnect the VSA modulator-control unit 46P connector.
  1. Start the engine.
  1. Measure the voltage between body ground and all the wheel sensor +B and GND terminals of the VSA modulator-control unit 46P connector individually (see table).
    DTC
    Appropriate Terminal
    +B
    GND
    Right-front
    FR +B:
    No. 29
    FR-GND:
    No. 28
    Left-front
    FL +B:
    No. 34
    FL-GND:
    No. 13
    Right-rear
    RR +B:
    No. 30
    RR-GND:
    No. 8
    Left-rear
    RL +B:
    No. 11
    RL-GND:
    No. 10

Is there 0.1 V or more?
YES -
Repair short to power in the wire between the VSA modulator-control unit and the wheel sensor. After repair, go to Step 8 .
NO -
Check for loose terminals in the VSA modulator-control unit 46P connector. If necessary, substitute a known-good VSA modulator-control unit and retest.■
  1. Clear the DTC with the HDS.
  1. Turn the ignition switch to LOCK (0), then turn it to ON (II).
  1. Check for DTCs with the HDS.
Is DTC 22 indicated?
YES -
Check for loose terminals in the VSA modulator-control unit 46P connector. If necessary, substitute a known-good VSA modulator-control unit and retest.■
NO -
Intermittent failure, the system is OK at this time. Check for loose terminals between the wheel sensor 2P connector and the VSA modulator-control unit 46P connector. Refer to intermittent failures troubleshooting. ■