Compressor Clutch Circuit Troubleshooting - Honda 2002 Accord Manual

9. Using a Backprobe Set, measure the voltage
between the No. 20 terminal of the PCM connector
A (32P) and body ground w i t h the PCM connectors
connected.
P C M C O N N E C T O R A ( 3 2 P )
W i r e s i d e o f f e m a l e t e r m i n a l s
G R N
/
2 3 4 5 6
/
8 9 10
12 13 14 15 16 17 18 19 20 21
A
23
24
25 26 27 28 29 30
/
32
Is there battery voltage?
YES —Check f o r loose wires or poor connections at
the PCM connector A(32P). If the connections are
g o o d , substitute a known-good PCM,and recheck. If
the symptom/Indication goes away, replace the
original P C M . B
NO —Repair open in the w i r e between the radiator
and the condenser fan relays and PCM.B
Compressor Clutch Circuit
Troubleshooting
1. Check the N o . 58 (20A) fuse in the under-hood fuse/
relay box, and the No. 3 (7.5A) fuse in the driver's
under-dash fuse/relay box.
Are the fuses OK ?
Y E S - G o t o step 2.
NO — Replace the fuse(s), and recheck. B
2. Check the engine coolant temperature (Use the
Honda PGM Tester PGM-FI data list if possible).
Is the coolant temperature higher than nomal?
YES—Troubleshoot and repair cause of high
engine coolant temperature. B
N O - G o t o step 3.
3. Remove t h e compressor clutch relay f r o m the
under-hood fuse/relay box, and test it (see page 22-
52).
Is the relay OK?
Y E S - G o t o step 4.
NO—Replace the compressor clutch relay.B
4. Measure the voltage between the No.1 t e r m i n a l of
the compressor clutch relay 4P socket and body
g r o u n d .
C O M P R E S S O R C L U T C H R E L A Y 4 P S O C K E T
( ^
1
( ^
1
2
4
3
J
Is there battery voltage?
Y E S - G o t o step 5.
NO —Replace the under-hood fuse/relay box.
(cont'd)
21-39