Diagnostic Test

CHECK FOR AN ACTIVE DTC
NOTE:
This DTC must be active for the results of this test to be valid.
1. Turn the ignition on.
2. With the scan tool, read ABS DTCs and record on the repair order.
3. With the scan tool, erase ABS DTCs.
  CAUTION:
  Make sure braking capability is available before road testing.
4. Road test the vehicle over 40 km/h (25 mph).
  NOTE:
  Vehicle must be driven above 40 km/h (25 mph) for two minutes before set conditions are met.
5. With the scan tool, read ABS DTCs.
  Did the DTC return?
  
  Yes
  - Go To 2
  No
  - Perform ABS INTERMITTENT CONDITION diagnostic procedure. Refer to ABS INTERMITTENT CONDITION .
PERFORM THE STEERING ANGLE SENSOR CALIBRATION ROUTINE
1. Turn the ignition on.
  WARNING:
  To avoid possible serious or fatal injury, check brake capability is available before road testing.
2. With the scan tool, perform the "Steering Angle Sensor Calibration" routine and perform the ABS VERIFICATION TEST. Refer to ABS VERIFICATION TEST .
  Was the routine successful?
  
  Yes
  - Test Complete.
  No
  - Perform the "Steering Angle Sensor Calibration" routine again, if still unsuccessful.
  - Go To 3
STEERING ANGLE SENSOR (SAS)
1. Turn the ignition off.
2. Replace the Steering Angle Sensor (SAS) in accordance with service information. Refer to CLOCKSPRING, REMOVAL AND INSTALLATION .
3. Perform ABS VERIFICATION TEST. Refer to ABS VERIFICATION TEST .
4. Test drive the vehicle by turning the vehicle left and right in a curving manner at a velocity between 15 and 35 km/h (9 and 22 mph).
5. With the scan tool, read the DTCs.
  Does the DTC remain active?
  
  Yes
  - Replace the Anti-lock Brake System (ABS) Module in accordance with the Service Information. Refer to MODULE, ANTI-LOCK BRAKE SYSTEM, REMOVAL AND INSTALLATION .
  - Perform ABS VERIFICATION TEST. Refer to ABS VERIFICATION TEST .
  No
  - Test complete.