2008 - MX-5 - Brakes

STEERING ANGLE SENSOR INSPECTION

1. Remove the column cover. (See COLUMN COVER REMOVAL/INSTALLATION.)

2. Measure the voltage between steering angle sensor terminal B and ground.

• If there is any malfunction, inspect the wiring harness between steering angle sensor terminal B and battery, then repair or replace if necessary.

Standard voltage

• B+

3. Turn the ignition switch to the ON position, then measure the voltage between steering angle sensor terminal A and ground.

• If there is any malfunction, inspect the wiring harness between steering angle sensor terminal A and ignition switch, then repair or replace if necessary.

Standard voltage

• B+

4. Measure the voltage between steering angle sensor terminal H and the ground.

• If there is any malfunction, inspect the wiring harness between steering angle sensor terminal H and ground point, then repair or replace if necessary.

Standard voltage

• 0 V

5. Turn the ignition switch off.

6. Connect the M-MDS to the DLC-2.

7. Select the SWA_POS PID.

8. Verify the SWA_POS changes when the steering wheel is turned to the left and right.

• If there is any malfunction, replace the steering angle sensor.

Standard

• When the steering wheel is turned to the right:

  SWA_POS changes positively.

• When the steering wheel is turned to the left:

  SWA_POS changes negatively.