D7 Check Circuit 571 (BK/O) Continuity

- Set the voltmeter to the 200 ohm scale.

- Disconnect the RABS diagnostic connector from its mating half (Circuits 571 [BK/O] and 483 [R]).

- Measure resistance of Circuit 571 (BK/O) from diagnostic connector to module harness connector Pin 12.

- Is the resistance less than 20 ohms?

YES -- Replace antilock electronic control unit.

NO -- Repair Circuit 571 (BK/O). Reconnect antilock electronic control unit. Repeat System Pre-Check.