Honda Civic Service Manual page 481

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Brake Switch Signal ('99 - 00 Models except Dl6Y5 engine with M/Tl
This signals the ECM/PCM when the brake pedal is depressed
I
lnsoection ot Brake Switch signal.
Are the brake lights on without
depressing the brake Pedal?
Depress the brake Pedal
Inspect the HoRN {15 A} fuse in
the underhood fuse/ relay box'
Do the brake lights come on?
-
R.pair short in the wiro be'
tween the brake switch and
the HORN (15 Alfuse.
-
Replac€ the HORN (15 A) tuse.
-
Repair open in the wite be'
tween the brako switch and
the HORN (15 Alfuse.
-
lnsoect the brake switch (3ec
section tgl.
Check fot an oPen in the wire
{BKsw linel:
1. Depress the brake Pedal.
2. Measure vohage beween ECM/
PCM connector terminals A32
and 820 with the brake Pedal
depressed.
Bepair open in the wire between
t h e E C M / P C M ( A 3 2 ) a n d t h e
brake switch.
Brake switch signal i5 OK
ECM/PCM CONNECTORS
BKSW (GRN/WHTI
LG1 {BRN/BLK)
W i r e s i d e o { f e m a l e t e r m i n a l s