Nissan Pathfinder (2006 year). Instruction — part 57
TROUBLE DIAGNOSIS
ATC-121
C
D
E
F
G
H
I
K
L
M
A
B
ATC
2006 Pathfinder
2.
CHECK VOLTAGE BETWEEN IN-VEHICLE SENSOR AND GROUND
1.
Disconnect in-vehicle sensor connector.
2.
Turn ignition switch ON.
3.
Check voltage between in-vehicle sensor harness connector
M32 terminal 4 and ground.
OK or NG
OK
>> GO TO 3.
NG
>> GO TO 5.
3.
CHECK CIRCUIT CONTINUITY BETWEEN IN-VEHICLE SENSOR AND FRONT AIR CONTROL
1.
Turn ignition switch OFF.
2.
Disconnect front air control connector M49.
3.
Check continuity between in-vehicle sensor harness connector
M32 terminal 1 and front air control harness connector M49 ter-
minal 13.
OK or NG
OK
>> GO TO 4.
NG
>> Repair harness or connector.
4.
CHECK IN-VEHICLE SENSOR
Check in-vehicle sensor. Refer to
OK or NG
OK
>> 1. Replace front air control. Refer to
.
2. Go to
ATC-51, "A/C System Self-diagnosis Function"
and perform self-diagnosis.
NG
>> 1. Replace in-vehicle sensor. Refer to
2. Go to
ATC-51, "A/C System Self-diagnosis Function"
and perform self-diagnosis.
5.
CHECK CIRCUIT CONTINUITY BETWEEN IN-VEHICLE SENSOR AND FRONT AIR CONTROL
1.
Turn ignition switch OFF.
2.
Disconnect front air control connector.
3.
Check continuity between in-vehicle sensor harness connector
M32 terminal 4 and front air control harness connector M50 ter-
minal 27.
4.
Check continuity between in-vehicle sensor harness connector
M32 terminal 4 and ground.
OK or NG
OK
>> 1. Replace front air control. Refer to
.
2. Go to
ATC-51, "A/C System Self-diagnosis Function"
and perform self-diagnosis.
NG
>> Repair harness or connector.
4 - Ground
: Approx. 5V.
LJIA0089E
1 - 13
: Continuity should exist.
WJIA1147E
4 - 27
: Continuity should exist.
4 - Ground
: Continuity should not exist.
WJIA1148E
ATC-122
TROUBLE DIAGNOSIS
2006 Pathfinder
6.
CHECK CIRCUIT CONTINUITY BETWEEN IN-VEHICLE SENSOR MOTOR AND FRONT AIR CON-
TROL (SELF-DIAGNOSIS CODES 44 OR 46)
1.
Turn ignition switch OFF.
2.
Disconnect front air control connector and in-vehicle sensor con-
nector.
3.
Check continuity between in-vehicle sensor harness connector
M32 terminal 2 and 3 and front air control harness connector
M50 terminal 34 and 33.
4.
Check continuity between in-vehicle sensor harness connector
M32 terminal 2 and 3 and ground.
OK or NG
OK
>> 1. Replace front air control. Refer to
.
2. Go to
ATC-51, "A/C System Self-diagnosis Function"
and perform self-diagnosis.
NG
>> Repair harness or connector.
COMPONENT INSPECTION
In-vehicle Sensor
After disconnecting in-vehicle sensor connector M32, measure resis-
tance between terminals 1 and 4 at sensor component side, using
the table below.
If NG, replace in-vehicle sensor.
2 - 34
: Continuity should exist.
3 - 33
: Continuity should exist.
2, 3 - Ground
: Continuity should not exist.
WJIA1149E
Temperature
°
C (
°
F)
Resistance k
Ω
−
15 (5)
21.40
−
10 (14)
16.15
−
5 (23)
12.29
0 (32)
9.41
5 (41)
7.27
10 (50)
5.66
15 (59)
4.45
20 (68)
3.51
25 (77)
2.79
30 (86)
2.24
35 (95)
1.80
40 (104)
1.45
45 (113)
1.18
WJIA1150E
TROUBLE DIAGNOSIS
ATC-123
C
D
E
F
G
H
I
K
L
M
A
B
ATC
2006 Pathfinder
Optical Sensor Circuit
EJS004PJ
COMPONENT DESCRIPTION
The optical sensor is located in the center of the defroster grille. It
detects sunload entering through windshield by means of a photo
diode. The sensor converts the sunload into a current value which is
then input into the front air control.
OPTICAL INPUT PROCESS
The front air control includes a processing circuit which averages the variations in detected sunload over a
period of time. This prevents adjustments in the ATC system operation due to small or quick variations in
detected sunload.
For example, consider driving along a road bordered by an occasional group of large trees. The sunload
detected by the optical sensor will vary whenever the trees obstruct the sunlight. The processing circuit aver-
ages the detected sunload over a period of time, so that the (insignificant) effect of the trees momentarily
obstructing the sunlight does not cause any change in the ATC system operation. On the other hand, shortly
after entering a long tunnel, the system will recognize the change in sunload, and the system will react accord-
ingly.
DIAGNOSTIC PROCEDURE FOR OPTICAL SENSOR
SYMPTOM: Optical sensor circuit is open or shorted. (44 or 46 is
indicated on front air control display as a result of conducting self-
diagnosis).
WJIA1466E
WJIA1152E
ATC-124
TROUBLE DIAGNOSIS
2006 Pathfinder
1.
CHECK CIRCUIT CONTINUITY BETWEEN OPTICAL SENSOR AND FRONT AIR CONTROL
1.
Turn ignition switch OFF.
2.
Disconnect front air control connector and optical sensor con-
nector.
3.
Check continuity between optical sensor harness connector
M145 (B) terminal 1 and 2 and front air control harness connec-
tor M50 (A) terminal 37 and 29.
4.
Check continuity between optical sensor harness connector M145 (B) terminal 1 and 2 and ground.
OK or NG
OK
>> GO TO 2.
NG
>> Repair harness or connector.
2.
CHECK CIRCUIT CONTINUITY BETWEEN OPTICAL SENSOR AND BCM
1.
Turn ignition switch OFF.
2.
Disconnect BCM connector and optical sensor connector.
3.
Check continuity between optical sensor harness connector
M145 (B) terminal 3 and BCM harness connector M18 (A) termi-
nal 18.
4.
Check continuity between optical sensor harness connector
M145 (B) terminal 3 and ground.
OK or NG
OK
>> Replace optical sensor. Refer to
.
NG
>> Repair harness or connector.
A
B
Connector
Terminal Connector
Terminal
Continuity
Front air control:
M50
29
Optical sensor:
M145
2
Yes
Front air control:
M50
37
Optical sensor:
M145
1
Yes
B
Continuity
Connector
Terminal
Ground
Optical sensor:
M145
1 No
Optical sensor:
M145
2 No
WJIA1654E
A
B
Connector
Terminal Connector
Terminal
Continuity
BCM: M18
18
Optical sensor:
M145
3
Yes
B
Continuity
Connector
Terminal
Ground
No
Optical Sensor: M145
3
WJIA1655E
TROUBLE DIAGNOSIS
ATC-125
C
D
E
F
G
H
I
K
L
M
A
B
ATC
2006 Pathfinder
Intake Sensor Circuit
EJS004PK
COMPONENT DESCRIPTION
Intake Sensor
The intake sensor is located on the heater & cooling unit assembly. It
converts temperature of air after it passes through the evaporator
into a resistance value which is then input to the front air control.
DIAGNOSTIC PROCEDURE FOR INTAKE SENSOR
SYMPTOM: Intake sensor circuit is open or shorted. (56 or 57 is indi-
cated on front air control display as a result of conducting Self-diag-
nosis.)
1.
CHECK VOLTAGE BETWEEN INTAKE SENSOR AND GROUND
1.
Disconnect intake sensor connector.
2.
Turn ignition switch ON.
3.
Check voltage between intake sensor harness connector M146
terminal 2 and ground.
OK or NG
OK
>> GO TO 2.
NG
>> GO TO 4.
2.
CHECK CIRCUIT CONTINUITY BETWEEN INTAKE SENSOR AND FRONT AIR CONTROL
1.
Turn ignition switch OFF.
2.
Disconnect front air control connector.
3.
Check continuity between intake sensor harness connector
M146 terminal 1 and front air control harness connector M49 ter-
minal 13.
OK or NG
OK
>> GO TO 3.
NG
>> Repair harness or connector.
WJIA1155E
WJIA1156E
2 - Ground
: Approx. 5V
WJIA1278E
1 - 13
: Continuity should exist.
WJIA1157E
ATC-126
TROUBLE DIAGNOSIS
2006 Pathfinder
3.
CHECK INTAKE SENSOR
OK or NG
OK
>> 1. Replace front air control. Refer to
.
2. Go to
ATC-51, "A/C System Self-diagnosis Function"
and perform self-diagnosis.
NG
>> 1. Replace intake sensor. Refer to
2. Go to
ATC-51, "A/C System Self-diagnosis Function"
and perform self-diagnosis.
4.
CHECK CIRCUIT CONTINUITY BETWEEN INTAKE SENSOR AND FRONT AIR CONTROL
1.
Turn ignition switch OFF.
2.
Disconnect front air control connector.
3.
Check continuity between intake sensor harness connector
M146 terminal 2 and front air control harness connector M49 ter-
minal 12.
4.
Check continuity between intake sensor harness connector
M146 terminal 2 and ground.
OK or NG
OK
>> 1. Replace front air control. Refer to
.
2. Go to
ATC-51, "A/C System Self-diagnosis Function"
and perform self-diagnosis.
NG
>> Repair harness or connector.
COMPONENT INSPECTION
Intake Sensor
After disconnecting intake sensor connector, measure resistance
between terminals 1 and 2 at sensor harness side, using the table
below.
If NG, replace intake sensor.
2 - 12
: Continuity should exist.
2 - Ground
: Continuity should not exist.
WJIA1158E
Temperature
°
C (
°
F)
Resistance k
Ω
−
15 (5)
209.0
−
10 (14)
160.0
−
5 (23)
123.0
0 (32)
95.8
5 (41)
74.9
10 (50)
58.9
15 (59)
46.7
20 (68)
37.3
25 (77)
30.0
30 (86)
24.2
35 (95)
19.7
40 (104)
16.1
45 (113)
13.2
WJIA1159E
CONTROL UNIT
ATC-127
C
D
E
F
G
H
I
K
L
M
A
B
ATC
2006 Pathfinder
CONTROL UNIT
PFP:27500
Removal and Installation
EJS004PL
FRONT AIR CONTROL
Removal
1.
Remove cluster lid C. Refer to
IP-11, "CLUSTER LID C -WITHOUT NAVIGATION SYSTEM"
2.
Remove the four screws securing the front air control to cluster
lid C.
3.
Remove the front air control.
Installation
Installation is in the reverse order of removal.
REAR AIR CONTROL
Removal
1.
Remove the rear finisher assembly from the back of the center console. Refer to
2.
Remove the four screws and remove the rear air control.
Installation
Installation is in the reverse order of removal.
LBIA0416E
LBIA0417E
ATC-128
AMBIENT SENSOR
2006 Pathfinder
AMBIENT SENSOR
PFP:27722
Removal and Installation
EJS004PM
REMOVAL
1.
Remove the front grille. Refer to
2.
Disconnect the ambient sensor 1 (1) electrical connector.
●
⇐
: Front
NOTE:
Both of the ambient sensors are located behind the front grille,
below the hood latch. The upper ambient sensor 1 (1) provides
input for the automatic A/C system. The lower ambient sensor 2
(2) provides input for the compass/temperature driver informa-
tion system.
3.
Release the ambient sensor 1 (1) clip and then remove the
ambient sensor 1 (1).
INSTALLATION
Installation is in the reverse order of removal.
LJIA0192E
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст