q
A
q
B
I
Turn ignition switch OFF.
Disconnect A/C relay harness connec-
tor.
CHECK POWER SUPPLY
FOR A/C RELAY.
Disconnect A/C relay.
Do approx. 12 volts exist
between A/C relay harness
connector terminal No.
q
3
and body ground?
NG
OK
Note
Check circuit continuity between A/C
relay harness connector terminal No.
q
5
and compressor harness connector
terminal No.
q
1
.
If NG, check harness connectors.
H
CHECK POWER SUPPLY
CIRCUIT AND 10A FUSE AT
FUSE BLOCK.
(Refer to “POWER SUPPLY
ROUTING” in EL section and
Wiring Diagram.)
I
Turn ignition switch ON.
CHECK POWER SUPPLY FOR A/C
RELAY (Coil side).
Do approx. 12 volts exist between A/C
relay harness connector terminal No.
q
2
and body ground?
H
E
NG
CHECK POWER SUPPLY
FOR A/C CONTROL PANEL.
Disconnect A/C control panel
harness connector.
Do approx. 12 volts exist
between A/C control panel
harness connector terminal
No.
q
1
and body ground?
NG
OK
F
q
C
(Go to next page.)
CHECK POWER SUPPLY
CIRCUIT AND 10A FUSE AT
FUSE BLOCK.
(Refer to “POWER SUPPLY
ROUTING” in EL section and
Wiring Diagram.)
Note:
If the result is NG after checking circuit continuity, repair harness or connec-
tor.
YHA417
YHA418
YHA419
YHA420
H
H
H
H
H
H
TROUBLE DIAGNOSES
Diagnostic Procedure 2 (Cont’d)
HA-56