DTC Troubleshooting: 22

DTC 22:  Current Flow into Wheel Sensor Input Amplifie

1.Turn the ignition switch OFF, then turn the ignition switch ON (II).

2.Check the DTCs using the HDS.

Does the VSA and ABS indicators come on, and are DTCs 11, 13, 15, 17 indicated?


YES - Troubleshoot the DTCs indicated.n


NO - Go to 3.


3.Turn the ignition switch OFF.

4.Disconnect the VSA control unit 46P connector.

5.Start the engine.

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

Wheel Sensor 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 battery voltage?


YES - Repair short to power in the wire between the VSA modulator-control unit and the wheel sensor. After repair, go to 7.


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


7.Clear the DTCs using the HDS.

8.Check the DTCs using the HDS.

Doest the VSA and ABS indicators come on, and are DTC 22 indicated?


YES - Check for loose or poor connections in the VSA control unit 46P connector. If connections are good, replace the VSA modulator-control unit.n


NO - The system is OK at this time.n