DT1.3 Check For Unwarranted RABS 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 and is REAR ABS light on?

YES -- Go to Symptom Chart A , Unwarranted RABS II Activity. A - Unwarranted ABS Activity

NO -- Go to DT1.4. DT1.4 Brake Stop Lamp/Switch Check
-- If other symptoms are detected, Go to DT1.6. DT1.6 Determine Next Diagnostic Step Based on Brake Symptom
-- If REAR ABS light comes on and stays on, Go to DT1.7. DT1.7 Obtain Diagnostic Trouble Code