Brake Pedal Position Switch Signal Circuit Troubleshooting - Honda 2004 Odyssey Service Manual

Brake Pedal Position Switch Signal Circuit Troubleshooting

'99-00, '02-04 Models
NOTE: Information marked with an asterisk ( ) applies
to '02-04 models.
1. Check the brake lights.
Are the brake lights on without pressing the brake
pedal?
YES Inspect the brake switch (see page 19-6).
NO Go to step 2.
2. Press the brake pedal.
Do the brake lights come on?
YES Go to step 3.
NO Go to step 4.
3. Measure voltage between PCM connector
terminals A32 and B20 with the brake pedal
pressed.
PCM CONNECTORS
A (32P)
BKSW (WHT/BLK)
Wire side of female terminals
Is there battery voltage?
YES The brake pedal position switch signal is
OK.
NO Repair open in the wire between the PCM
(A32) and the brake pedal position switch.
B (25P)
LG1 (BRN/BLK)
LG1 (BRN/YEL)*
4. Inspect the STOP (20A) fuse in the under-hood fuse/
relay box.
Is the f use OK ?
YES Repair open in the wire between the brake
pedal position switch and the STOP (20A) fuse.
Inspect the brake pedal position switch (see page
19-6).
NO Repair short in the wire between the PCM
(A32) and the STOP (20A) fuse. Replace the STOP
(20A) fuse.
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