J4 Check ABS Operation RH Rear Wheel

- Jump pins 19 and 34 at breakout box.

- Short pins 55, 18 and 60 to each other at breakout box.

- Apply moderate brake pedal effort. Check that RH rear wheel will not turn with ignition switch to the OFF position.

- Check that RH rear wheel turns freely with ignition switch in the RUN position.

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

- Does wheel turn freely?

YES -- Turn ignition switch to the OFF position. Disconnect wire leads. Go to J5.

NO -- Verify correct wiring between 55-pin connector and 19-pin connector on brake pressure control valve block. If wiring is correct, replace brake pressure control valve block.