P2 Check ABS Valve Operation

- Turn ignition switch OFF.

Anti-Lock Module:

- Disconnect anti-lock brake wiring plug from anti-lock brake control module.

Breakout Box:

- Connect 60-pin Rotunda Breakout Box 014-00322 or equivalent with Anti-Lock Brake Adapter T90P-50-ALA to the anti-lock brake wiring connector on wire harness.

- Lift vehicle and rotate wheels to make sure they turn freely.

- Jump pins 19 and 34 at breakout box.

- Short pins 20, 2 and 60 to each other at breakout box.

- Apply moderate brake pedal effort and check that LH front wheel will not turn with ignition switch OFF.

CAUTION: Do not leave ignition ON for more than one minute, or valve damage may result.

- Check to see that LH front wheel turns freely when ignition switch is ON.

- Do wheels turn freely?

YES -- Turn ignition switch OFF. Disconnect wire leads. Go to P3. P3 Check ABS Operation RH Front Wheel

NO -- Verify correct wiring between 55-pin connector and 16-pin connector on valve block. If wiring is correct, replace solenoid valve block. Restore vehicle. Retest system.