P1 Check Yellow RABS Warning Lamp

- Key OFF.

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

- Reconnect diagnostic connector.

- Key ON.

- Does the yellow RABS warning lamp come ON?

YES -- Hard fault. Go to P2.

NO -- Intermittent faulty. Go to Pinpoint Test T and proceed with intermittent diagnosis for all affected circuits.