Brake Pedal Position Switch Signal - Acura 3.5 RL Manual

Idle Control System

Brake Pedal Position Switch Signal

This signals the PCM when the brake pedal is depressed.
Inspection of Brake Pedal Position
Switch Signal.
Are the brake lights on without
depressing the brake pedal?
NO
Depress the brake pedal.
Do the brake lights come on?
YES
Check for an open in the wire
(BKSW line):
1. Depress the brake pedal.
2. Measure voltage between PCM
connector terminals E2 and
A26 with the brake pedal de-
pressed.
Is there battery voltage?
YES
Brake pedal position switch sig-
nal is OK.
YES
Inspect the brake pedal position
switch (see section
Inspect the STOP HORN (15 A)
NO
fuse in the under-hood fuse/ relay
box.
Is the fuse OK?
YES
— Repair open in the wire be-
tween the brake pedal posi-
tion switch and the STOP
HORN (15 A) fuse.
— Inspect the brake pedal posi-
tion switch (see
Repair open in the wire between
NO
the PCM (E2) and the brake pedal
position switch.
19).
NO
section 19).
PCM CONNECTORS
Wire side of female terminals
— Repair short in the wire be-
tween the brake pedal posi-
tion switch and the STOP
HORN (15 A) fuse.
— Replace the STOP HORN (15 A)
fuse.