DTC Troubleshooting: 27
DTC 27:
 Steering Angle Sensor
  1. Check the size, air pressure, and the amount of wear of all four tyres, and check the wheel alignment.
Is the tyre condition and wheel alignment OK?
YES -
Go to Step 2 .
NO -
Make sure the suspension is not modified, and adjust the wheel alignment correctly, and recheck by test-driving.■
  1. Turn the ignition switch to ON (II).
  1. Clear the DTC with the HDS.
  1. Test-drive the vehicle around a number of corners.
    NOTE: Drive the vehicle on a straight section of road, not on a lift.
  1. Check for DTCs with the HDS.
Is DTC 27 indicated?
YES -
Go to Step 6 .
NO -
Intermittent failure, the system is OK at this time. Check for loose terminals between the steering angle sensor 5P connector and the VSA modulator-control unit 47P connector. Refer to intermittent failures troubleshooting. ■
  1. Turn the ignition switch to LOCK (0).
  1. Disconnect the steering angle sensor 5P connector.
  1. Disconnect the VSA modulator-control unit 47P connector.
  1. Turn the ignition switch to ON (II).
  1. Measure the voltage between body ground and VSA modulator-control unit 47P connector terminals No. 5 and No. 40 individually.
Is there 0.1 V or more?
YES -
Repair short to power in the wire between the VSA modulator-control unit and the steering angle sensor.■
NO -
Go to Step 11 .