Honda ACCORD HYBRID 2005 Service Manual page 1641

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
NOTE:
• It is n o r m a l for the A/C compressor to turn off under
certain conditions, such as l o w idle, high engine
coolant temperature, or hard acceleration.
• Do not use this troubleshooting procedure if the fans
are also inoperative w i t h the A/C on. Refer to the
s y m p t o m troubleshooting index.
• Before performing s y m p t o m t r o u b l e s h o o t i n g , check
for powertrain DTCs (see page 11-3).
1. Check the No. 12 (7.5 A) fuse in the under-hood
fuse/relay box, and the No. 30 (7.5 A) fuse in the
under-dash fuse/relay box.
Are the fuses OK ?
Y E S — G o t o step 2.
NO—Replace the fuse(s) and r e c h e c k . •
2. Check the engine coolant temperature, and idle
speed (use the HDS PGM-FI data list if possible).
ECT Sensor
1 8 7 - 2 0 1 °F ( 8 6 - 9 4 °C)
TPS A b o u t 0.5 V
RPM More than 680
Are the coolant temperature and idle speed OK?
YES—Go to step 3.
NO—Troubleshoot and repair the cause of the high
engine coolant temperature, or l o w idle. •
3. Remove the A/C compressor clutch relay f r o m the
under-hood fuse/relay box, and test it (see page
22-72).
Is the relay OK ?
Y E S — G o t o step 4.
NO—Replace the A/C compressor clutch relay. •
4. Measure the voltage between the A/C compressor
clutch relay 4P socket terminal No. 1 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
Is there battery voltage?
Y E S — G o t o step 5.
NO—Replace the under-hood fuse/relay b o x . H
5. Connect the A/C compressor clutch relay 4P socket
terminals No. 1 and No. 2 w i t h a j u m p e r w i r e .
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
J U M P E R WIRE
B L K / R E D
r
1
2
4 3
v
J
Does the A/C compressor clutch click?
Y E S — G o t o step 6.
NO—Go to step 14.
(cont'd)
21-71