Without Scan Tool

4 Wheel Anti-Lock Brake System Data Link Connector:

NOTE: If 12V test light is not available, the amber ABS warning light also flashes during this test.

1. Locate test connector in the engine compartment and install 12V test light between connector Pins 4 (Circuit 603 [DG]) and 2 (Circuit 57 [BK]) in test connector..
2. With the ignition off, jumper between connector Pins 2 (Circuit 57 [BK]) and 5 (Circuit 606 [BK/LB]).
3. Turn key to RUN position.
4. Remove jumper between between connector Pins 2 (Circuit 57 [BK]) and 5 (Circuit 606 [BK/LB]) after 5 seconds.
5. Count light flashes of test light or amber ABS warning light.