Inspection Procedure

WARNING: This page is about a different car, the 2002 Toyota Avalon. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Start the inspection from step 1 in case of using the hand-held tester and start from step 2 in case of not using the hand-held tester.

Check output value of the steering angle sensor.
Preparation:
1. Connect the hand-held tester to the DLC3.
2. Turn the ignition switch ON and push the hand-held tester main switch ON.
3. Select the DATALIST mode on the hand-held tester.
Check: that the steering wheel turning angle value of the steering angle sensor displayed on the hand-held tester is appropriate when turning the steering wheel.

OK: Steering wheel turning angle value must be appropriate.

OK: Go to step 4.

If NG , go to step 2.
Check the installation condition of steering angle sensor and adapter.
NG: Repair or replace steering angle sensor. See STEP 16 - W/VSC, REMOVE STEERING ANGLE SENSOR .

If OK , go to step 3.
Check for open and short circuit in harness and connector between steering angle sensor, translate ECU and ABS & BA & TRAC & VSC ECU . See HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE .
NG: Repair or replace harness or connector.

If OK , go to step 4.
Calibrate the steering angle sensor . See STEP 2 - SPEED SENSOR SIGNAL CHECK (TEST MODE) .
NG: Replace steering angle sensor.

If OK , go to step 5.
Replace the ECU and check whether or not the trouble occurs again.
YES: Replace steering angle sensor.

NO: Check and replace ABS & BA & TRAC & VSC ECU.