S3 Check For Unwarranted RABS II Activity

NOTE: Stop should be performed on dry pavement.

- Drive vehicle at approximately 20 mph.

- Perform a light to medium (normal traffic) stop.

- Turn off the windshield wipers if they are on. (Wipers can cause a pulsation in the brake pedal that can be mistaken for RABS II activity.) Feel for pulsation in the brake pedal within 10 seconds after the vehicle has come to a stop.

- Is there any pulsation in the brake pedal any time during the stop or within 10 seconds after the vehicle has stopped?

YES -- And REAR ABS warning light is not on. Go to Diagnosis by symptom for unwarranted RABS II Activity.

NO -- but other symptoms are detected. Go to S6. S6 Determine Next Diagnostic Step Based on Brake Symptom

NO -- And REAR ABS warning light is not on. Go to S4. S4 Brake Stoplamp/Switch Check

RABS warning light comes on and stays on
Go to S7. S7 Obtain DTC