Instrument Panel: Testing: Speedometer

Ensure fuses No. 17 and 18 are okay. Raise and support vehicle. Turn ignition on. Rotate wheels by hand. ABS control module should send a pulsed A/C speed signal to terminal No. 7 (Gray/Green wire) of main instrument display No. 1, and terminal No. 5 (Orange/White wire) of main instrument display No. 2. If pulsed signal is not present, check for an open or short circuit.