Nissan Pathfinder (2008 year). Manual - part 443
HAC-88
< COMPONENT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONER]
POWER SUPPLY AND GROUND CIRCUIT FOR CONTROLLER
Is the inspection result normal?
YES
>> System OK.
NO
>> Replace A/C auto amp. Refer to
VTL-8, "Removal and Installation"
A/C Auto Amp Power and Ground Diagnosis Procedure
INFOID:0000000001366745
DIAGNOSTIC PROCEDURE FOR A/C SYSTEM
SYMPTOM: A/C system does not come on.
1.
CHECK POWER SUPPLY CIRCUITS FOR A/C AUTO AMP.
1.
Disconnect A/C auto amp. connectors.
2.
Check voltage between A/C auto amp. harness connector M49
(B) terminal 15 and M50 (A) terminal 27, and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>>
Check 10A fuses [Nos. 8 and 19, located in the fuse block (J/B)]. Refer to
Amp. Terminals Reference Values"
• If fuses are OK, check harness for open circuit. Repair or replace as necessary.
• If fuses are NG, replace fuse and check harness for short circuit. Repair or replace as neces-
sary.
2.
CHECK GROUND CIRCUIT FOR A/C AUTO AMP.
1.
Turn ignition switch OFF.
2.
Check continuity between A/C auto amp. harness connector
M50 terminal 36 and ground.
Is the inspection result normal?
OK
>> Replace A/C auto amp. Refer to
NG
>> Repair harness or connector.
AWIIA0212GB
Terminals
Ignition switch position
(+)
(-)
OFF
ACC
ON
A/C auto
amp. con-
nector
Terminal No.
M49
15
Ground
Approx. 0V
Approx. 0V
Battery
voltage
M50
27
Battery
voltage
Battery
voltage
Battery
voltage
AWIIA0215ZZ
36 - Ground
: Continuity should exist.
AWIIA0214ZZ