Initial Inspection and Diagnostic Overview

CONDITIONS THAT ARE NOT MALFUNCTIONS
1. Vibration can sometimes be felt in the steering wheel, body, and/or brake pedal when the ABS is functioning; such vibration is simply an indication that the system is functioning.
2. The ABS warning light may illuminate under any of the following conditions:
^ When the vehicle is travelling on snow or ice with the parking brake activated or a brake dragging at one wheel.
^ When different size tires are used.
^ When tires of different gripping performance are used.
^ When (the vehicle is jacked up or stuck) the front wheels only are spun for 20 seconds or more.
3. Under the above conditions, there will be no diagnostic trouble code entry made to the control module memory. Drive the vehicle at over 20 km/h (12.4 mph), and if the system is verified to be normal, the warning light goes off.