Nissan Pathfinder (2010 year). Manual — part 448
HAC-60
< COMPONENT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONER]
REAR AIR CONTROL SYSTEM
4. Check for hot air at rear floor discharge air outlets in the maximum heat position and cold air at rear roof
discharge air outlets in the maximum cold position.
Does the rear air control (rear) operate properly?
YES
>> GO TO 3.
NO
>> Check rear air control (rear). Refer to
HAC-62, "Rear Air Control (Rear) Diagnosis Procedure"
.
3.
CHECK FOR ANY SYMPTOMS
Perform a complete operational check (rear) for any symptoms.
Does another symptom exist?
YES
>> Refer to
HAC-4, "How to Perform Trouble Diagnosis For Quick And Accurate Repair"
.
NO
>> System OK.
4.
CHECK FOR SERVICE BULLETINS
Check for any service bulletins.
>> GO TO 5.
5.
CONFIRM SYMPTOM BY PERFORMING REAR AIR CONTROL (REAR) OPERATIONAL CHECK
Perform rear air control operation diagnosis to check for any codes. Refer to
.
Are any symptoms present?
YES
>> Refer to
HAC-106, "Symptom Matrix Chart"
.
NO
>> System OK.
Rear Air Control (Front) Diagnosis Procedure
INFOID:0000000005256940
Regarding Wiring Diagram information, refer to
DIAGNOSTIC PROCEDURE FOR REAR AIR CONTROL (FRONT)
SYMPTOM:
• Temperature/mode operation is malfunctioning.
1.
CHECK REAR AIR CONTROL (FRONT) POWER SUPPLY
1. Disconnect rear air control (front) harness connector.
2. Turn ignition switch ON.
3. Check voltage between rear air control (front) harness connec-
tor R2 terminal 10 and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair harness or connector.
2.
CHECK REAR AIR CONTROL (FRONT) REFERENCE VOLTAGE
Battery voltage should exist.
AWIIA0253ZZ
2010 Pathfinder
REAR AIR CONTROL SYSTEM
HAC-61
< COMPONENT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONER]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
Check voltage between rear air control (front) harness connector R2
terminal 3 and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> GO TO 6.
3.
CHECK REAR AIR CONTROL (FRONT) AUX TEMP POT VOLTAGE
Check voltage between rear air control (front) harness connector R2
terminal 7 and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> GO TO 7.
4.
CHECK REAR AIR CONTROL (FRONT) GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between rear air control (front) harness con-
nector R2 terminal 1 and ground.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair harness or connector.
5.
CHECK REAR AIR CONTROL (FRONT) REFERENCE GROUND CIRCUIT
Check continuity between rear air control (front) harness connector
R2 terminal 8 and ground.
Is the inspection result normal?
YES
>> Replace rear air control (front). Refer to
.
NO
>> GO TO 8.
6.
CHECK REAR AIR CONTROL (FRONT) REFERENCE VOLTAGE CIRCUIT
Connector
Terminals
Voltage (Ap-
prox.)
(+)
(-)
Rear air control (front): R2
3
Ground
4.5V
AWIIA0257ZZ
Connector
Terminals
Voltage (Ap-
prox.)
(+)
(-)
Rear air control (front): R2
7
Ground
4.5V
AWIIA0258ZZ
Continuity should exist.
AWIIA0254ZZ
Continuity should exist.
AWIIA0259ZZ
2010 Pathfinder
HAC-62
< COMPONENT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONER]
REAR AIR CONTROL SYSTEM
1. Turn ignition switch OFF.
2. Disconnect A/C auto amp. connector.
3. Check continuity between A/C auto amp. harness connector
M50 (A) terminal 28 and rear air control (front) harness connec-
tor R2 (B) terminal 3.
Is the inspection result normal?
YES
>> Replace A/C auto amp. Refer to
NO
>> Repair harness or connector.
7.
CHECK REAR AIR CONTROL (FRONT) AUX TEMP POT CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect A/C auto amp. connector.
3. Check continuity between A/C auto amp. harness connector
M50 (A) terminal 37 and rear air control (front) harness connec-
tor R2 (B) terminal 7.
Is the inspection result normal?
YES
>> Replace A/C auto amp. Refer to
NO
>> Repair harness or connector.
8.
CHECK REAR AIR CONTROL (FRONT) REFERENCE GROUND CIRCUIT FOR OPEN
1. Disconnect A/C auto amp. connector.
2. Check continuity between A/C auto amp. harness connector
M49 (A) terminal 3 and rear air control (front) harness connector
R2 (B) terminal 8.
Is the inspection result normal?
YES
>> Replace A/C auto amp. Refer to
NO
>> Repair harness or connector.
Rear Air Control (Rear) Diagnosis Procedure
INFOID:0000000005256941
Regarding Wiring Diagram information, refer to
DIAGNOSTIC PROCEDURE FOR REAR AIR CONTROL (REAR)
1.
CHECK REAR AIR CONTROL (REAR) AUX TEMPERATURE POT VOLTAGE
1. Turn ignition switch OFF.
2. Disconnect rear air control (rear).
3. Turn ignition switch ON.
4. Check voltage between rear air control (rear) harness connector
M208 terminal 7 and ground.
Is the inspection result normal?
Continuity should exist.
AWIIA0260ZZ
Continuity should exist.
AWIIA0235ZZ
Continuity should exist.
AWIIA0261ZZ
Connector
Terminals
Voltage (Ap-
prox.)
(+)
(-)
Rear air control (rear): M208
7
Ground
4.5V
AWIIA0258ZZ
2010 Pathfinder
REAR AIR CONTROL SYSTEM
HAC-63
< COMPONENT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONER]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
YES
>> GO TO 2.
NO
>> GO TO 5.
2.
CHECK REAR AIR CONTROL (REAR) REFERENCE VOLTAGE
Check voltage between rear air control (rear) harness connector
M208 terminal 3 and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> GO TO 6
3.
CHECK REAR AIR CONTROL (REAR) REFERENCE RETURN GROUND
1. Turn ignition switch OFF.
2. Check continuity between rear air control (rear) harness connec-
tor M208 terminal 8 and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> GO TO 7.
4.
CHECK REAR AIR CONTROL (REAR) GROUND CIRCUIT
1. Check continuity between rear air control (rear) harness connec-
tor M208 terminal 1 and ground.
Is the inspection result normal?
YES
>> Replace rear air control (rear). Refer to
.
NO
>> Repair harness or connector.
5.
CHECK REAR AUX TEMP CIRCUIT BETWEEN REAR AIR CONTROL (REAR) AND A/C AUTO AMP. FOR
OPEN
1. Turn ignition switch OFF.
2. Disconnect A/C auto amp. connector.
3. Check continuity between rear air control (rear) harness connec-
tor M50 (A) terminal 51 and rear air control (rear) harness con-
nector M208 (B) terminal 7.
Is the inspection result normal?
YES
>> Replace A/C auto amp. Refer to
NO
>> Repair harness or connector.
6.
CHECK REFERENCE VOLTAGE CIRCUIT BETWEEN REAR AIR CONTROL (REAR) AND A/C AUTO
AMP. FOR OPEN
Connector
Terminals
Voltage (Ap-
prox.)
(+)
(-)
Rear air control (rear): M208
3
Ground
4.5V
AWIIA0257ZZ
Continuity should exist.
AWIIA0259ZZ
Continuity should exist.
AWIIA0254ZZ
Continuity should exist.
AWIIA0235ZZ
2010 Pathfinder
HAC-64
< COMPONENT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONER]
REAR AIR CONTROL SYSTEM
1. Turn ignition switch OFF.
2. Disconnect A/C auto amp. connector.
3. Check continuity between rear air control (rear) harness connec-
tor M50 (A) terminal 28 and rear air control (rear) harness con-
nector M208 (B) terminal 3.
Is the inspection result normal?
YES
>> Replace A/C auto amp. Refer to
NO
>> Repair harness or connector.
7.
CHECK REFERENCE RETURN GROUND CIRCUIT BETWEEN REAR AIR CONTROL (REAR) AND A/C
AUTO AMP. FOR OPEN
1. Turn ignition switch OFF.
2. Disconnect A/C auto amp. connector.
3. Check continuity between rear air control (rear) harness connec-
tor M49 (A) terminal 3 and rear air control (rear) harness con-
nector M208 (B) terminal 8.
Is the inspection result normal?
YES
>> Replace A/C auto amp. Refer to
NO
>> Repair harness or connector.
Continuity should exist.
AWIIA0260ZZ
Continuity should exist.
AWIIA0261ZZ
2010 Pathfinder
MAGNET CLUTCH
HAC-65
< COMPONENT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONER]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
MAGNET CLUTCH
System Description
INFOID:0000000005256942
SYSTEM DESCRIPTION
The A/C auto amp. controls compressor operation based on ambient and intake temperature and a signal
from ECM.
Low Temperature Protection Control
The A/C auto amp. will turn the compressor ON or OFF as determined by a signal detected by the intake sen-
sor and the ambient sensor.
When intake air temperature is higher than the preset value, the compressor turns ON. The compressor turns
OFF when intake air temperature is lower than the preset value. That preset value is dependent on the ambi-
ent temperature, refer to the following table.
Magnet Clutch Component Function Check
INFOID:0000000005256943
INSPECTION FLOW
1.
CONFIRM SYMPTOM BY PERFORMING OPERATIONAL CHECK - MAGNET CLUTCH
1. Turn ignition switch ON.
2. Press the A/C switch.
3. Press vent switch (
).
4. Display shows
, A/C. Confirm that the compressor clutch engages (sound or visual inspection). (Dis-
charge air and blower speed will depend on ambient, in-vehicle and set temperatures.)
Can the symptom be duplicated?
YES
>> Inspection End.
NO
>> Go to diagnosis procedure. Refer to
HAC-65, "Magnet Clutch Diagnosis Procedure"
.
Magnet Clutch Diagnosis Procedure
INFOID:0000000005256944
Regarding Wiring Diagram information, refer to
DIAGNOSTIC PROCEDURE FOR MAGNET CLUTCH
Ambient temperature
°
C
(
°
F)
VK56DE Model
VQ40DE Model
Compressor ON
intake temperature
°
C
(
°
F)
Compressor OFF
intake temperature
°
C
(
°
F)
Compressor ON
intake temperature
°
C
(
°
F)
Compressor OFF
intake temperature
°
C
(
°
F)
0 (32)
6.0 (43)
5.5 (42)
5.5 (42)
5.0 (41)
10 (50)
5.0 (41)
5.0 (41)
4.5 (40)
4.5 (40)
20 (68)
3.5 (38)
3.0 (37)
3.0 (37)
2.5 (37)
30 (86)
3.0 (37)
2.5 (37)
2.5 (37)
1.5 (35)
40 (104)
3.0 (37)
2.5 (37)
2.0 (36)
1.0 (34)
50 (122)
3.0 (37)
2.5 (37)
2.0 (36)
1.0 (34)
2010 Pathfinder
HAC-66
< COMPONENT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONER]
MAGNET CLUTCH
SYMPTOM: Magnet clutch does not engage when A/C switch is ON.
1.
CHECK INTAKE AND AMBIENT SENSOR CIRCUITS
Check intake and ambient sensors. Refer to
HAC-24, "A/C Auto Amp. Self-Diagnosis"
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> • Malfunctioning intake sensor. Refer to
HAC-157, "Intake Sensor Diagnosis Procedure"
.
• Malfunctioning ambient sensor. Refer to
HAC-75, "Ambient Sensor Diagnosis Procedure"
2.
PERFORM AUTO ACTIVE TEST
PCS-12, "Diagnosis Description"
.
Does magnet clutch operate?
YES
>> •
WITH CONSULT-III
GO TO 5.
•
WITHOUT CONSULT-III
GO TO 6.
NO
>> Check 10A fuse (No. 42, located in IPDM E/R), and GO TO 3.
3.
CHECK CIRCUIT CONTINUITY BETWEEN IPDM E/R AND COMPRESSOR
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector and compressor (magnet
clutch) connector.
3. Check continuity between IPDM E/R harness connector E119
terminal 11 and A/C compressor harness connector F3 terminal
1.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair harness or connector.
4.
CHECK MAGNET CLUTCH CIRCUIT
AWIIA0198GB
11 – 1
: Continuity should exist.
WJIA0560E
2010 Pathfinder
MAGNET CLUTCH
HAC-67
< COMPONENT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONER]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
Check for operation sound when applying battery voltage direct cur-
rent to terminal.
Is the inspection result normal?
YES
>> Replace IPDM E/R. Refer to
.
NO
>> Replace magnet clutch. Refer to
Installation for Compressor Clutch"
5.
CHECK BCM INPUT (COMPRESSOR ON) SIGNAL
Check compressor ON/OFF signal. Refer to
HAC-21, "CONSULT-III Function (HVAC)"
Is the inspection result normal?
YES
>> GO TO 8.
NO
>> GO TO 6.
6.
CHECK CIRCUIT CONTINUITY BETWEEN BCM AND A/C AUTO AMP.
1. Turn ignition switch OFF.
2. Disconnect BCM connector and A/C auto amp. connector.
3. Check continuity between BCM harness connector M18 (A) ter-
minal 27 and A/C auto amp. harness connector M49 (B) terminal
4.
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> Repair harness or connector.
7.
CHECK VOLTAGE FOR A/C AUTO AMP. (A/C COMPRESSOR ON SIGNAL)
1. Reconnect BCM connector and A/C auto amp. connector.
2. Turn ignition switch ON.
3. Check voltage between A/C auto amp. harness connector M49
terminal 4 and ground.
Is the inspection result normal?
YES
>> GO TO 8.
NO-1 >> If the voltage is approx. 5V when A/C switch is ON, replace A/C auto amp. Refer to
.
NO-2 >> If the voltage is approx. 0V when A/C switch is OFF, replace BCM. Refer to
.
8.
CHECK REFRIGERANT PRESSURE SENSOR
1. Start engine.
SJIA0197E
A/C SW ON
: COMP ON SIG ON
A/C SW OFF
: COMP ON SIG OFF
27 - 4
Continuity should exist.
AWIIA0199ZZ
Terminals
Condition
Voltage
(+)
(-)
A/C auto
amp. con-
nector
Terminal No.
M49
4
Ground
A/C switch: ON
Approx. 0V
A/C switch: OFF
Approx. 5V
AWIIA0200ZZ
2010 Pathfinder
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст