( TF09E00K801000R2721FAAT00 )
VSA DTC Troubleshooting: 27-21, 27-22
DTC 27-21:
 Steering Angle Sensor Stuck Neutral Position
DTC 27-22:
 Steering Angle Sensor Stuck Offset Position
  1. Turn the ignition switch to ON (II).
  1. Turn the steering wheel left and right 90 degrees or more. Check the STEERING ANGLE in the VSA DATA LIST with the HDS.
Is there +90 ° or more, and −90 ° or less?
YES -
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 36P connector. Refer to intermittent failures troubleshooting. ■
NO -
Go to Step 3 .
  1. Turn the ignition switch to LOCK (0).
  1. Turn the ignition switch to ON (II).
  1. Measure the voltage between body ground and steering angle sensor 5P connector terminals No. 2, No. 3, and No. 4 individually.
Is there 0.1 V or more?
YES -
Repair short to power in the wire between the steering angle sensor and the VSA modulator-control unit.■
NO -