Nissan Pathfinder (2007 year). Manual — part 127
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
BRC-101
[HDC/HSA/VDC/TCS/ABS]
C
D
E
G
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A
B
BRC
2007 Pathfinder
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
PFP:00000
Wheel Sensor System Inspection
EFS0066T
INSPECTION PROCEDURE
1.
CHECK TIRES
Check for inflation pressure, wear and size of each tire.
Are tire pressure and size correct and is tire wear within specifications?
YES
>> GO TO 2.
NO
>> Adjust tire pressure or replace tire(s).
2.
CONNECTOR INSPECTION
Disconnect the ABS actuator and electric unit (control unit) connector E125 and wheel sensor of malfunction-
ing code.
Check the terminals for deformation, disconnection, looseness or damage.
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace as necessary.
3.
CHECK SENSOR AND SENSOR ROTOR
●
Check the cord of the sensor mount (for looseness, etc.)
●
Check sensor rotors for damage (rear only)
●
Check wheel bearing axial end play
OK or NG
OK
>> GO TO 4.
NG
>> Repair or replace as necessary.
4.
CHECK WHEEL SENSOR OUTPUT SIGNAL
1.
Connect ABS active wheel sensor tester (J-45741) to wheel sensor using appropriate adapter.
2.
Turn on the ABS active wheel sensor tester power switch.
NOTE:
The green POWER indicator should illuminate. If the POWER indicator does not illuminate, replace the
battery in the ABS active wheel sensor tester before proceeding.
3.
Spin the wheel of the vehicle by hand and observe the red SENSOR indicator on the ABS active wheel
sensor tester. The red SENSOR indicator should flash on and off to indicate an output signal.
NOTE:
If the red SENSOR indicator illuminates but does not flash, reverse the polarity of the tester leads and
retest.
Does the ABS active wheel sensor tester detect a signal?
YES
>> GO TO 5.
NO
>> Replace the wheel sensor. Refer to
BRC-102
[HDC/HSA/VDC/TCS/ABS]
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
2007 Pathfinder
5.
CHECK WIRING HARNESS FOR SHORT CIRCUIT
1.
Disconnect ABS actuator and electric unit (control unit) connec-
tor and wheel sensor connector of malfunction code No.
2.
Check resistance between wheel sensor harness connector ter-
minals and ground.
OK or NG
OK
>> GO TO 6.
NG
>> Repair the circuit.
6.
CHECK WIRING HARNESS FOR OPEN CIRCUIT
Check continuity between ABS actuator and electric unit (control unit) harness connector E125 and the mal-
functioning wheel sensor harness connector E18, E117 or C13.
OK or NG
OK
>> Replace the ABS actuator and electric unit (control unit). Refer to
NG
>> Repair the circuit.
Engine System Inspection
EFS0066U
INSPECTION PROCEDURE
1.
SELF-DIAGNOSIS RESULT CHECK
Check self-diagnosis results.
Is the above displayed in the self-diagnosis display items?
YES
>> GO TO 2.
NO
>> Inspection End.
Continuity should not exist.
WFIA0326E
Wheel sensor
ABS actuator and
electric unit (control unit)
Wheel sensor
Continuity
Connector
Terminal
Connector
Terminal
Front LH
E125
45
E18
1
Yes
46
2
Front RH
34
E117
1
33
2
Rear LH
37
C13
3
36
4
Rear RH
42
1
43
2
Self-diagnosis results
ENGINE SIGNAL 1
ENGINE SIGNAL 2
ENGINE SIGNAL 3
ENGINE SIGNAL 4
ENGINE SIGNAL 6
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
BRC-103
[HDC/HSA/VDC/TCS/ABS]
C
D
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A
B
BRC
2007 Pathfinder
2.
ENGINE SYSTEM INSPECTION
1.
Perform ECM self-diagnosis and repair as necessary.
2.
Perform ABS actuator and electric unit (control unit) self-diagnosis again.
OK or NG
OK
>> Inspection End.
NG
>> Repair or replace as necessary.
ABS/TCS/VDC Control Unit Inspection
EFS0066V
INSPECTION PROCEDURE
1.
SELF-DIAGNOSIS RESULT CHECK
Check self-diagnosis results.
Is the above displayed in the self-diagnosis display items?
YES
>> Replace ABS actuator and electric unit (control unit). Refer to
BRC-130, "Removal and Installa-
NO
>> Inspection End.
Steering Angle Sensor System
EFS0066W
INSPECTION PROCEDURE
1.
CHECK SELF-DIAGNOSIS RESULT
Check self-diagnosis results.
Is above displayed in self-diagnosis item?
YES
>> GO TO 2.
NO
>> Inspection End.
2.
CHECK CONNECTOR
1.
Disconnect steering angle sensor connector M47 and ABS actuator and electric unit (control unit) connec-
tor E125 and check terminals for deformation, disconnection, looseness, or damage. Repair or replace as
necessary.
2.
Reconnect connectors and repeat ABS actuator and electric unit (control unit) self-diagnosis.
Is "ST ANGLE SEN CIRCUIT" or "ST ANG SEN COM CIR" displayed?
YES
>> GO TO 3.
NO
>> Inspection End.
Self-diagnosis results
CONTROLLER FAILURE
VARIANT CODING
Self-diagnosis results
ST ANGLE SEN CIRCUIT
ST ANG SEN COM CIR
BRC-104
[HDC/HSA/VDC/TCS/ABS]
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
2007 Pathfinder
3.
CHECKING STEERING ANGLE SENSOR POWER AND GROUND
1.
Check voltage between steering angle sensor harness connec-
tor M47 and body ground.
2.
Turn ignition switch OFF.
3.
Check resistance between steering angle sensor harness con-
nector M47 and body ground.
OK or NG
OK
>> GO TO 4.
NG
>> Repair the circuit.
4.
CHECK STEERING ANGLE SENSOR HARNESS
1.
Check CAN communication system. Refer to
.
2.
Disconnect steering angle sensor connector M47 and ABS actu-
ator and electric unit (control unit) connector E125.
3.
Check continuity between ABS actuator and electric unit (control
unit) connector E125 and steering angle sensor connector M47.
OK or NG
OK
>> GO TO 5.
NG
>> Repair or replace harness.
5.
CHECK STEERING WHEEL PLAY
Check steering wheel play. Refer to
PS-8, "CHECKING STEERING WHEEL PLAY"
OK or NG
OK
>> GO TO 6.
NG
>> Adjust steering wheel play.
Terminals
Measured
value
(Approx.)
(+)
(-)
Steering angle sensor
connector
Terminal
M47
1
Ground
12V
3
12V
WFIA0398E
Terminals
Measured
value
(Approx.)
(+)
(-)
Steering angle sensor
connector
Terminal
M47
2
Ground
0
Ω
WFIA0399E
A
B
Continuity
Connector
Ter-
minal
Connector
Ter-
minal
ABS actuator and
electric unit (con-
trol unit): E125
11
Steering angle
sensor: M47
4
Yes
ABS actuator and
electric unit (con-
trol unit): E125
15
Steering angle
sensor: M47
5
Yes
WFIA0400E
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
BRC-105
[HDC/HSA/VDC/TCS/ABS]
C
D
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G
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A
B
BRC
2007 Pathfinder
6.
CHECK DATA MONITOR
1.
Connect steering angle sensor and ABS actuator and electric unit (control unit) connectors.
2.
Use “DATA MONITOR” to check if the status of "STR ANGLE SIG" is normal.
OK or NG
OK
>> Perform ABS actuator and electric unit (control unit) self-diagnosis again.
NG
>> Replace spiral cable (steering angle sensor) and adjust neutral position of steering angle sensor.
Refer to
BRC-126, "Adjustment of Steering Angle Sensor Neutral Position"
Yaw Rate/Side/Decel G Sensor System Inspection
EFS0066X
CAUTION:
Sudden turns (such as spin turns, acceleration turns), drifting, etc. when VDC function is OFF may
cause the yaw rate/side/decel G sensor system to indicate a problem. This is not a problem if normal
operation can be resumed after restarting the engine.
INSPECTION PROCEDURE
1.
SELF-DIAGNOSIS RESULT CHECK
Check self-diagnosis results.
CAUTION:
If vehicle is on turntable at entrance to parking garage, or on other moving surface, VDC OFF indicator
lamp may illuminate and CONSULT-II self-diagnosis may indicate yaw rate sensor system malfunction.
However, in this case there is no malfunction in yaw rate sensor system. Take vehicle off of turntable
or other moving surface, and start engine. Results will return to normal.
Is the above displayed in the self-diagnosis display items?
YES
>> GO TO 2.
NO
>> Inspection End.
2.
CONNECTOR INSPECTION
Disconnect the ABS actuator and electric unit (control unit) connector E125 and yaw rate/side/decel G sensor
connector B73.
Check the terminals for deformation, disconnection, looseness or damage.
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace as necessary.
Steering condition
Data monitor
Straight-ahead
–3.5 deg to +3.5 deg
Turn wheel to the right by 90
°
Approx. - 90deg
Turn wheel to the left by 90
°
Approx. + 90deg
Self-diagnosis results
YAW RATE SENSOR
SIDE G-SEN CIRCUIT
G-SENSOR
BRC-106
[HDC/HSA/VDC/TCS/ABS]
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
2007 Pathfinder
3.
YAW RATE/SIDE/DECEL G SENSOR HARNESS INSPECTION
1.
Turn off the ignition switch and disconnect yaw rate/side/decel G sensor connector B73 and ABS actuator
and electric unit (control unit) connector E125.
2.
Check continuity between the ABS actuator and electric unit (control unit) connector E125 and the yaw
rate/side/decel G sensor connector B73.
OK or NG
OK
>> GO TO 4.
NG
>> Repair or replace as necessary.
4.
YAW RATE/SIDE/DECEL G SENSOR INSPECTION
1.
Connect the yaw rate/side/decel G sensor connector B73 and ABS actuator and electric unit (control unit)
connector E125.
2.
Use “DATA MONITOR” to check if the yaw rate/side/decel G sensor signals are normal.
OK or NG
OK
>> Inspection End.
NG
>> Replace the yaw rate/side/decel G sensor. Refer to
BRC-133, "Removal and Installation"
ABS actuator and electric unit
(control unit) harness connector
E125
Yaw rate/side/decel G sensor
harness connector B73
Continuity
6
3
Yes
24
5
Yes
25
1
Yes
29
2
Yes
Vehicle status
Yaw rate sensor
(Data monitor standard)
Side G sensor
(Data monitor standard)
Decel G Sensor
(Data monitor standard)
When stopped
-4 to +4 deg/s
-1.1 to +1.1 m/s
-0.11 G to +0.11 G
Right turn
Negative value
Negative value
-
Left turn
Positive value
Positive value
-
Speed up
-
-
Negative value
Speed down
-
-
Positive value
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
BRC-107
[HDC/HSA/VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
2007 Pathfinder
Solenoid and VDC Change-Over Valve System Inspection
EFS0066Y
INSPECTION PROCEDURE
1.
SELF-DIAGNOSIS RESULT CHECK
Check self-diagnosis results.
Is the above displayed in the self-diagnosis display items?
YES
>> GO TO 2.
NO
>> Inspection End.
2.
CONNECTOR INSPECTION
1.
Disconnect ABS actuator and electric unit (control unit) connector E125.
2.
Check the terminals for deformation, disconnection, looseness or damage.
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace as necessary.
Self-diagnosis results
FR LH IN ABS SOL
FR LH OUT ABS SOL
RR RH IN ABS SOL
RR RH OUT ABS SOL
FR RH IN ABS SOL
FR RH OUT ABS SOL
RR LH IN ABS SOL
RR LH OUT ABS SOL
CV 1
CV 2
SV 1
SV 2
BRC-108
[HDC/HSA/VDC/TCS/ABS]
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
2007 Pathfinder
3.
CHECKING SOLENOID POWER AND GROUND
1.
Check voltage between ABS actuator and electric unit (control
unit) harness connector E125 and body ground.
2.
Check resistance between ABS actuator and electric unit (con-
trol unit) harness connector E125 and body ground.
OK or NG
OK
>> Perform self-diagnosis again. If the same results
appear, replace ABS actuator and electric unit (control
unit). Refer to
BRC-130, "Removal and Installation"
NG
>> Repair the circuit.
Actuator Motor, Motor Relay, and Circuit Inspection
EFS0066Z
INSPECTION PROCEDURE
1.
CHECKING SELF-DIAGNOSIS RESULTS
Check self-diagnosis results.
Is the above displayed in the self-diagnosis display items?
YES
>> GO TO 2.
NO
>> Inspection End.
2.
CONNECTOR INSPECTION
1.
Disconnect ABS actuator and electric unit (control unit) connector E125.
2.
Check the terminals for deformation, disconnection, looseness or damage.
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace as necessary.
ABS actuator and electric unit
(control unit) connector E125
Body
ground
Measured
value
(Approx.)
32
—
12V
WFIA0195E
ABS actuator and electric unit
(control unit) connector E125
Body
ground
Measured
value
(Approx.)
16
—
0
Ω
47
—
WFIA0196E
Self-diagnosis results
PUMP MOTOR
ACTUATOR RLY
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