Honda ACCORD HYBRID 2005 Service Manual page 578

Idle Control System
B r a k e P e d a l P o s i t i o n S w i t c h S i g n a l C i r c u i t T r o u b l e s h o o t i n g
1. Turn the ignition switch ON (II).
2. Check the BRAKE SWITCH in the DATA LIST w i t h
the HDS.
Does it indicate OFF?
Y E S — G o to step 3.
NO—Inspect the brake pedal position (see page
1 9 - 5 ) . •
3. Press the brake pedal, and check the BRAKE
SWITCH in the DATA LIST w i t h the HDS.
Does it change to ON?
Y E S — T h e brake pedal position switch signal circuit
( B K S W I i n e ) i s O K . B
NO—Go to step 4.
4. T u r n the ignition switch OFF.
5. J u m p the SCS line w i t h the HDS.
6. Disconnect the brake pedal position switch 4P
connector.
7. Disconnect PCM connector E (31P).
8. Check for continuity between PCM connector
terminal E8 and body g r o u n d .
PCM C O N N E C T O R E (31P)
B K S W ( L T G R N )
1 2 | 3 | 4 | 5
6 | 7 |
8
9
10 11 12 13 14 15 16 17 18 19 20 21
22 23 24
25 26 27
A
29
/
31
Is there continuity?
Y E S — R e p a i r short in the w i r e between the PCM
(E8) and the No. 13 HORN, STOP (20 A) fuse.
Replace the No. 13 HORN, STOP (20 A) f u s e . B
NO—Go to step 9.
9. Check for continuity between PCM connector
terminal E8 and brake pedal position switch 4P
connector terminal No. 2.
PCM C O N N E C T O R E (31P)
B K S W ( L T G R N )
1 2 3 4 5
6 | 7
8 9
10 11 12 13 14 15 16 17 18 19 20 21
22 23 24 25 26 27
A
29
/
31
BRAKE P E D A L POSITION
SWITCH 4P C O N N E C T O R
1
3 ^ 4
B K S W
( L T G R N )
W i r e side of f e m a l e t e r m i n a l s
Is there continuity?
Y E S — R e p a i r open in the w i r e between the brake
pedal position switch and the No. 13 HORN, STOP
(20 A) fuse. Inspect the brake pedal position switch
(see page 19-5). B
NO—Repair open in the w i r e between the PCM (E8)
and the brake pedal position s w i t c h . B
W i r e side of female t e r m i n a l s
11-338