Nissan Pathfinder. Manual — part 714
POWER SUPPLY AND GROUND CIRCUIT
HAC-117
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> GO TO 4.
2.
CHECK MODE DOOR MOTOR (REAR) GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect mode door motor (rear) connector.
3. Check continuity between mode door motor (rear) harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector.
3.
CHECK INSTALLATION OF MODE DOOR MOTOR (REAR)
Check mode door motor (rear) is properly installed. Refer to
Is the inspection result normal?
YES
>> Replace mode door motor (rear). Refer to
HAC-164, "MODE DOOR MOTOR : Removal and
Installation - Mode Door Motor (Rear)"
NO
>> Repair or replace malfunctioning part.
4.
CHECK MODE DOOR MOTOR (REAR) POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect mode door motor (rear) connector and A/C auto amp. connector.
3. Check continuity between mode door motor (rear) harness connector and A/C auto amp. harness connec-
tor.
Is the inspection result normal?
YES
>> Replace A/C auto amp. Refer to
HAC-157, "Removal and Installation"
.
NO
>> Repair harness or connector.
INTAKE DOOR MOTOR
INTAKE DOOR MOTOR : Diagnosis Procedure
INFOID:0000000009176857
Regarding Wiring Diagram information, refer to
1.
CHECK INTAKE MODE DOOR MOTOR POWER SUPPLY
1. Turn ignition switch ON.
2. Check voltage between intake mode door motor harness connector and ground.
+
−
Voltage
(Approx.)
Mode door motor (rear)
Connector
Terminal
M13
1
Ground
Battery voltage
Mode door motor (rear)
—
Continuity
Connector
Terminal
M13
3
Ground
Yes
Mode door motor (rear)
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M13
1
M50
17
Yes
HAC-118
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
POWER SUPPLY AND GROUND CIRCUIT
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> GO TO 4.
2.
CHECK INTAKE MODE DOOR MOTOR GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect intake mode door motor connector.
3. Check continuity between intake mode door motor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector.
3.
CHECK INSTALLATION OF INTAKE MODE DOOR MOTOR
Check intake mode door motor is properly installed. Refer to
.
Is the inspection result normal?
YES
>> Replace intake mode door motor. Refer to
HAC-165, "INTAKE DOOR MOTOR : Removal and
NO
>> Repair or replace malfunctioning part.
4.
CHECK INTAKE MODE DOOR MOTOR POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect intake mode door motor connector and A/C auto amp. connector.
3. Check continuity between intake mode door motor harness connector and A/C auto amp. harness con-
nector.
Is the inspection result normal?
YES
>> Replace A/C auto amp. Refer to
HAC-157, "Removal and Installation"
.
NO
>> Repair harness or connector.
A/C SWITCH ASSEMBLY
A/C SWITCH ASSEMBLY : Component Function Check
INFOID:0000000009176858
WITH BASE AUDIO SYSTEM
1.
CHECK OPERATION
1. Press the AUTO switch, and then check that “AUTO” is shown on the display.
2. Operate the temperature control switch (driver side). Check that the fan speed or outlet changes. (The
discharge air temperature or fan speed varies depending on the ambient temperature, in-vehicle tempera-
ture, and temperature setting.)
Does it operate normally?
YES
>> Inspection End.
+
−
Voltage
(Approx.)
Intake mode door motor
Connector
Terminal
M128
1
Ground
Battery voltage
Intake mode door motor
—
Continuity
Connector
Terminal
M128
3
Ground
Yes
Intake mode door motor
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M128
1
M50
17
Yes
POWER SUPPLY AND GROUND CIRCUIT
HAC-119
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
NO
>> Perform trouble diagnosis for the A/C switch assembly. Refer to
.
A/C SWITCH ASSEMBLY : Diagnosis Procedure
INFOID:0000000009176859
WITH BASE AUDIO SYSTEM
Regarding Wiring Diagram information, refer to
1.
CHECK FUSE
Check 10A fuse [No. 30, located in the fuse block (J/B)].
NOTE:
.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Replace the blown fuse after repairing the affected circuit.
2.
CHECK A/C SWITCH ASSEMBLY POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect A/C switch assembly connector.
3. Turn ignition switch ON.
4. Check voltage between A/C switch assembly connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector between A/C switch assembly and fuse block (J/B).
3.
CHECK A/C SWITCH ASSEMBLY GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between A/C switch assembly harness connector and ground.
Is the inspection result normal?
YES
>> Replace A/C switch assembly.
NO
>> Repair harness or connector.
A/C DISPLAY UNIT
A/C DISPLAY UNIT : Diagnosis Procedure
INFOID:0000000009176860
WITH BASE AUDIO SYSTEM
Regarding Wiring Diagram information, refer to
1.
CHECK FUSE
Check 10A fuse [No. 30, located in the fuse block (J/B)].
NOTE:
.
Is the inspection result normal?
+
−
Voltage
(Approx.)
A/C switch assembly
Connector
Terminal
M146
1
Ground
Battery voltage
A/C switch assembly
—
Continuity
Connector
Terminal
M146
2
Ground
Yes
HAC-120
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
POWER SUPPLY AND GROUND CIRCUIT
YES
>> GO TO 2.
NO
>> Replace the blown fuse after repairing the affected circuit.
2.
CHECK A/C DISPLAY UNIT POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect A/C display unit connector.
3. Turn ignition switch ON.
4. Check voltage between A/C display unit connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector between A/C display unit and fuse block (J/B).
3.
CHECK A/C DISPLAY UNIT GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between A/C display unit harness connector and ground.
Is the inspection result normal?
YES
>> Replace A/C display unit.
NO
>> Repair harness or connector.
REAR SHUT-OFF DOOR MOTOR
REAR SHUT-OFF DOOR MOTOR : Diagnosis Procedure
INFOID:0000000009176861
Regarding Wiring Diagram information, refer to
1.
CHECK SHUT-OFF DOOR MOTOR POWER SUPPLY
1. Turn ignition switch ON.
2. Check voltage between shut-off door motor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> GO TO 4.
2.
CHECK SHUT-OFF DOOR MOTOR GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect shut-off door motor connector.
3. Check continuity between shut-off door motor harness connector and ground.
+
−
Voltage
(Approx.)
A/C display unit
Connector
Terminal
M148
6
Ground
Battery voltage
A/C display unit
—
Continuity
Connector
Terminal
M148
1
Ground
Yes
+
−
Voltage
(Approx.)
Shut-off door motor
Connector
Terminal
M12
1
Ground
Battery voltage
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст