Honda ACCORD HYBRID 2005 Service Manual page 713

DTC P0725 (43): Engine Speed Input Circuit
Malfunction
1. Turn the ignition switch ON (II).
2. Check for T e m p o r a r y DTCs or DTCs of PGM-FI
system w i t h the HDS.
Are any Temporary DTCs or DTCs indicated?
Y E S — G o to the indicated D T C s troubleshooting.
N O — G o t o step 3.
3. Reset the M C M (see page 12-6).
4. Start the engine, and hold it at 2,000 r p m for
5 seconds.
5. Check for T e m p o r a r y DTCs or DTCs w i t h the HDS.
Is DTC P0725 indicated?
Y E S — G o t o step 6.
NO—Intermittent failure, system is OK at this t i m e .
Check for poor connections or loose terminals at
the PCM and the M C M . B
6. Turn the ignition switch OFF.
7. Turn the battery m o d u l e switch OFF (see page 12-4).
8. Remove the IPU lid (see page 12-140).
9. Disconnect M C M connector B (24P).
10. J u m p the SCS line w i t h the HDS.
11. Disconnect PCM connector B (24P).
12. Check for continuity between M C M connector
terminal B21 and body g r o u n d .
MCM C O N N E C T O R B (24P)
I
1
/
3 Z _
5
6 7
8 9 1 1 1 2 1 3 1 4 1 5
/
1 7 1 8 1 9 2 0 2 1 2 2 2 3 2 4
MOTNEP (LT GRN)
W i r e side of female t e r m i n a l s
Is there continuity?
Y E S — R e p a i r short in the w i r e between the PCM
(B14) and the MCM (B21), then go to step 15.
NO—Go to step 13.
13. Connect PCM connector t e r m i n a l B14 to body
g r o u n d w i t h a j u m p e r w i r e .
PCM C O N N E C T O R B (24P)
I
1
2 3 4 5
6 7
8 9 1 0 1 1 1 2 1 3 1 4 1 5
/
1 7 1 8 1 9
2 0 2 1 2 2 . 2 3 2 4
MOTNEP (LT GRN)
J U M P E R WIRE
W i r e side of f e m a l e t e r m i n a l s
(cont'd)
12-35