Honda ACCORD HYBRID 2005 Service Manual page 1642

Climate Control
A / C C o m p r e s s o r C l u t c h C i r c u i t T r o u b l e s h o o t i n g (cont'd)
6. Disconnect the j u m p e r w i r e .
7. Turn the ignition switch ON (II).
8. Measure the voltage between the A/C compressor
clutch relay 4P socket t e r m i n a l No. 4 and body
g r o u n d .
A / C C O M P R E S S O R C L U T C H R E L A Y 4P S O C K E T
1
2
4
v
3
B L K / Y E L
Is there battery voltage?
Y E S — G o t o step 9.
NO—Repair open in the w i r e between the No. 30
fuse in the under-dash fuse/relay box and the A/C
compressor clutch relay. •
9. Turn the ignition switch OFF.
10. Reinstall the A/C compressor clutch relay.
11. Make sure the A/C button is OFF.
12. Turn the ignition switch ON (II).
13. Using the backprobe set, measure the voltage
between PCM connector E (31P) t e r m i n a l No. 27
and body g r o u n d w i t h the PCM connectors
connected.
PCM CONNECTOR E (31P)
. I
7
I
1 0 1
2 2 2
1 1 2 1
3 2 4
3 1 4 1
2 5 2
> 1 6 1
3 2
7 1 8 1
7
/
2
9 2 0 2 1
9 ^
31
Wire side of female terminals
Is there battery voltage?
YES—Check for loose w i r e s or poor connections at
PCM connector E (31P). If the connections are g o o d ,
check the PCM grounds. If the grounds are g o o d ,
substitute a k n o w n - g o o d PCM, and recheck. If the
s y m p t o m / i n d i c a t i o n goes away, replace the
original PCM then p e r f o r m the PCM idle learn
procedure (see page 11-340). •
NO—Repair open in the w i r e between the A/C
compressor clutch relay and the PCM. •
14. Disconnect the j u m p e r w i r e .
15. Disconnect the A/C compressor clutch 3P connector.
16. Check for continuity between the A/C compressor
clutch relay 4P socket t e r m i n a l No. 2 and the A/C
compressor clutch 3P connector terminal No. 2.
A / C COMPRESSOR CLUTCH RELAY 4P S O C K E T
" B L U / R E D
A / C C O M P R E S S O R CLUTCH 3P CONNECTOR
Terminal side of male terminals
Is there continuity?
YES—Check the A/C compressor clutch clearance,
and the A/C compressor clutch field coil (see page
21-94). Repair as needed. •
NO—Repair open in the w i r e between the A/C
compressor clutch relay and the A/C compressor
clutch. •
21-72