Aviator 2WD V8-4.6L DOHC (2003)
Test H1-H2
Normal Operation
The brake pedal position switch (BPP) is supplied battery voltage through circuit 10 (LG/RD). When the brake pedal is pressed, the BPP switch
allows voltage to flow through circuit 511 (LG). Circuit 511 (LG) supplies power directly to the multifunction switch and to circuit 569 (DG) which
supplies power to the high mounted stoplamp. The multifunction switch internally splits the power (when in the neutral position) to circuits 374
(DB/WH) (LH stoplamps) and 378 (BN/YE) (RH stoplamps). Circuits 374 (DB/WH) and 378 (BN/YE) supply power to the LH and RH stoplamps
accordingly.
Possible Causes
-
Circuit 10 (LG/RD) open.
-
Circuit 511 (LG) open.
-
BPP switch.
Test I
PINPOINT TEST I: ONE OR MORE STOPLAMPS ARE INOPERATIVE
