Nissan Pathfinder (2010 year). Instruction — part 106
BRC-60
< COMPONENT DIAGNOSIS >
[VDC/TCS/ABS]
C1142 PRESS SENSOR
YES
>> GO TO 3
NO
>> Repair or replace harness or connector.
3.
REAR PRESSURE SENSOR INSPECTION
1. Reconnect the rear pressure sensor and ABS actuator and electric unit (control unit) connectors.
2. Perform the rear pressure sensor (PRESS SEN2) component inspection. Refer to
.
Is the inspection result normal?
YES
>> Perform self-diagnosis again. If the same results appear, replace the ABS actuator and electric
unit (control unit). Refer to
BRC-127, "Removal and Installation"
.
NO
>> Replace the rear pressure sensor.
Component Inspection
INFOID:0000000005258705
1.
CHECK DATA MONITOR
On “DATA MONITOR”, select “PRESS SENSOR” and “PRESS SEN2” and check the brake fluid pressure.
Is the inspection result normal?
YES
>> Inspection End
NO
>> Replace the appropriate pressure sensor. Refer to
BR-48, "Disassembly and Assembly"
.
Special Repair Requirement
INFOID:0000000005484909
1.
ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION
Always perform neutral position adjustment for the steering angle sensor when replacing the ABS actuator
and electric unit (control unit). Refer to
BRC-8, "ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL
.
>> GO TO 2
2.
CALIBRATION OF DECEL G SENSOR
Always perform calibration of decel G sensor when replacing the ABS actuator and electric unit (control unit).
BRC-9, "CALIBRATION OF DECEL G SENSOR : Description"
>> END
Condition
PRESS SENSOR and PRESS SEN2
(DATA MONITOR)
With ignition switch turned ON and brake pedal released.
Approx. 0 bar
With ignition switch turned ON and brake pedal depressed.
Positive value
2010 Pathfinder
C1143, C1144 STEERING ANGLE SENSOR
BRC-61
< COMPONENT DIAGNOSIS >
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
C1143, C1144 STEERING ANGLE SENSOR
Description
INFOID:0000000005258707
The steering angle sensor detects the rotation amount, angular velocity and direction of the steering wheel,
and transmits the data to the ABS actuator and electric unit (control unit) via CAN communication.
DTC Logic
INFOID:0000000005258708
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
CHECK SELF-DIAGNOSIS RESULTS
Check the self-diagnosis results.
Is above displayed on the self-diagnosis display?
YES
>> Proceed to diagnosis procedure. Refer to
.
NO
>> Inspection End
Diagnosis Procedure
INFOID:0000000005258709
Regarding Wiring Diagram information, refer to
BRC-94, "Wiring Diagram - BRAKE CONTROL SYSTEM -
or
BRC-102, "Wiring Diagram - BRAKE CONTROL SYSTEM - WITH VK56DE"
.
1.
CONNECTOR INSPECTION
1. Turn ignition switch OFF.
2. Disconnect ABS actuator and electric unit (control unit) connector.
3. Disconnect steering angle sensor connector.
4. Check terminal for deformation, disconnection, looseness, and so on. If any malfunction is found, repair or
replace terminal.
5. Reconnect connectors and then perform the self-diagnosis. Refer to
.
Is any item indicated on the self-diagnosis display?
YES
>> GO TO 2
NO
>> Poor connection of connector terminal. Repair or replace connector.
2.
CHECK STEERING ANGLE SENSOR HARNESS
1. Turn ignition switch OFF.
2. Disconnect steering angle sensor connector.
DTC
Display item
Malfunction detected condition
Possible cause
C1143
ST ANG SEN CIRCUIT
Neutral position of steering angle sensor is dislocated, or
the steering angle sensor is malfunctioning.
• Harness or connector
• Steering angle sensor
• ABS actuator and electric unit
(control unit)
C1144
ST ANG SEN SIGNAL
Neutral position of steering angle sensor is not finished.
Self-diagnosis results
ST ANG SEN CIRCUIT
ST ANG SEN SIGNAL
2010 Pathfinder
BRC-62
< COMPONENT DIAGNOSIS >
[VDC/TCS/ABS]
C1143, C1144 STEERING ANGLE SENSOR
3. Check continuity between steering angle sensor connector M47
terminal 2 and ground.
4. Turn ignition switch ON.
5. Check voltage between steering angle sensor connector M47
terminal 3 and ground.
Is the inspection result normal?
YES
>> GO TO 3
NO
>> Repair or replace malfunctioning components.
3.
CHECK DATA MONITOR
1. Connect the steering angle sensor connector and ABS actuator and electric unit (control unit) connector.
2. Perform the steering angle sensor component inspection. Refer to
BRC-62, "Component Inspection"
.
Is the inspection result normal?
YES
>> Replace ABS actuator and electric unit (control unit). Refer to
BRC-127, "Removal and Installa-
.
NO
>> Replace steering angle sensor and adjust neutral position of steering angle sensor. Refer to
130, "Removal and Installation"
.
Component Inspection
INFOID:0000000005258710
1.
CHECK DATA MONITOR
Select “STR ANGLE SIG” in “DATA MONITOR” and check steering angle sensor signal.
Is the inspection result normal?
YES
>> Inspection End
NO
>> Replace steering angle sensor and adjust neutral position of steering angle sensor. Refer to
130, "Removal and Installation"
.
Special Repair Requirement
INFOID:0000000005484910
1.
ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION
Always perform neutral position adjustment for the steering angle sensor when replacing the ABS actuator
and electric unit (control unit). Refer to
BRC-8, "ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL
.
>> GO TO 2
Steering angle sensor
—
Continuity
Connector
Terminal
M47
2
Ground
Yes
WFIA0399E
Steering angle sensor
—
Voltage
Connector
Terminal
M47
3
Ground
Battery voltage
AWFIA0023ZZ
Steering condition
STR ANGLE SIG (DATA MONITOR)
Driving straight
0
±
2.5
°
Turn 90
°
to left
Approx. +90
°
Turn 90
°
to right
Approx.
−
90
°
2010 Pathfinder
C1143, C1144 STEERING ANGLE SENSOR
BRC-63
< COMPONENT DIAGNOSIS >
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
2.
CALIBRATION OF DECEL G SENSOR
Always perform calibration of decel G sensor when replacing the ABS actuator and electric unit (control unit).
BRC-9, "CALIBRATION OF DECEL G SENSOR : Description"
>> END
2010 Pathfinder
BRC-64
< COMPONENT DIAGNOSIS >
[VDC/TCS/ABS]
C1155 BRAKE FLUID LEVEL SWITCH
C1155 BRAKE FLUID LEVEL SWITCH
Description
INFOID:0000000005258712
The brake fluid level switch converts the brake fluid level to an electric signal and transmits it to the ABS actu-
ator and electric unit (control unit).
DTC Logic
INFOID:0000000005258713
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
CHECK SELF-DIAGNOSIS RESULTS
Check the self-diagnosis results.
Is above displayed on the self-diagnosis display?
YES
>> Proceed to diagnosis procedure. Refer to
BRC-64, "Diagnosis Procedure (With VQ40DE)"
BRC-65, "Diagnosis Procedure (With VK56DE)"
NO
>> Inspection End
Diagnosis Procedure (With VQ40DE)
INFOID:0000000005258714
Regarding Wiring Diagram information, refer to
BRC-94, "Wiring Diagram - BRAKE CONTROL SYSTEM -
.
1.
CONNECTOR INSPECTION
1. Disconnect ABS actuator and electric unit (control unit) connector and brake fluid level switch connector.
2. Check the terminals for deformation, disconnection, looseness or damage.
Is the inspection result normal?
YES
>> GO TO 2
NO
>> Repair or replace as necessary.
2.
CHECK HARNESS BETWEEN BRAKE FLUID LEVEL SWITCH AND ABS ACTUATOR AND ELECTRIC
UNIT (CONTROL UNIT)
1. Check continuity between ABS actuator and electric unit (control
unit) connector E125 (A) terminal 28 and brake fluid level switch
connector E21 (B) terminal 1.
2. Check continuity between ABS actuator and electric unit (control
unit) connector E125 (A) terminal 28 and ground.
DTC
Display item
Malfunction detected condition
Possible cause
C1155
BR FLUID LEVEL LOW
Brake fluid level is low or communication line between
the ABS actuator and electric unit (control unit) and brake
fluid level switch is open or shorted.
• Harness or connector
• Brake fluid level switch
• Brake fluid level
Self-diagnosis results
BR FLUID LEVEL LOW
ABS actuator and electric unit
(control unit)
Brake fluid level switch
Continuity
Connector
Terminal
Connector
Terminal
E125 (A)
28
E21 (B)
1
Yes
AWFIA0474ZZ
2010 Pathfinder
C1155 BRAKE FLUID LEVEL SWITCH
BRC-65
< COMPONENT DIAGNOSIS >
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
Is the inspection result normal?
YES
>> GO TO 3
NO
>> Repair or replace malfunctioning components.
3.
CHECK BRAKE FLUID LEVEL SWITCH GROUND
Check continuity between brake fluid level switch connector E21 ter-
minal 2 and ground.
Is the inspection result normal?
YES
>> GO TO 4
NO
>> Repair or replace malfunctioning components.
4.
CHECK BRAKE FLUID LEVEL SWITCH
Perform brake fluid level switch component inspection. Refer to
BRC-66, "Component Inspection"
.
Is the inspection result normal?
YES
>> Perform self-diagnosis again. If the same results appear, replace ABS actuator and electric unit
(control unit). Refer to
BRC-127, "Removal and Installation"
NO
>> Replace brake fluid level switch.
Diagnosis Procedure (With VK56DE)
INFOID:0000000005258715
Regarding Wiring Diagram information, refer to
BRC-102, "Wiring Diagram - BRAKE CONTROL SYSTEM -
.
1.
CONNECTOR INSPECTION
1. Disconnect ABS actuator and electric unit (control unit) connector and brake fluid level switch connector.
2. Check the terminals for deformation, disconnection, looseness or damage.
Is the inspection result normal?
YES
>> GO TO 2
NO
>> Repair or replace as necessary.
2.
CHECK HARNESS BETWEEN BRAKE FLUID LEVEL SWITCH AND ABS ACTUATOR AND ELECTRIC
UNIT (CONTROL UNIT)
1. Check continuity between ABS actuator and electric unit (control
unit) connector E127 (A) terminal 8 and brake fluid level switch
connector E21 (B) terminal 1.
2. Check continuity between ABS actuator and electric unit (control
unit) connector E127 (A) terminal 8 and ground.
ABS actuator and electric unit (control unit)
—
Continuity
Connector
Terminal
E125 (A)
28
Ground
No
Brake fluid level switch
—
Continuity
Connector
Terminal
E21
2
Ground
Yes
AWFIA0026ZZ
ABS actuator and electric unit
(control unit)
Brake fluid level switch
Continuity
Connector
Terminal
Connector
Terminal
E127 (A)
8
E21 (B)
1
Yes
AWFIA0025ZZ
2010 Pathfinder
BRC-66
< COMPONENT DIAGNOSIS >
[VDC/TCS/ABS]
C1155 BRAKE FLUID LEVEL SWITCH
Is the inspection result normal?
YES
>> GO TO 3
NO
>> Repair or replace malfunctioning components.
3.
CHECK BRAKE FLUID LEVEL SWITCH GROUND
Check continuity between brake fluid level switch connector E21 ter-
minal 2 and ground.
Is the inspection result normal?
YES
>> GO TO 4
NO
>> Repair or replace malfunctioning components.
4.
CHECK BRAKE FLUID LEVEL SWITCH
Perform brake fluid level switch component inspection. Refer to
BRC-66, "Component Inspection"
.
Is the inspection result normal?
YES
>> Perform self-diagnosis again. If the same results appear, replace ABS actuator and electric unit
(control unit). Refer to
BRC-127, "Removal and Installation"
NO
>> Replace brake fluid level switch.
Component Inspection
INFOID:0000000005258716
1.
CHECK BRAKE FLUID LEVEL SWITCH
1. Turn ignition switch OFF.
2. Disconnect brake fluid level switch connector.
3. Check continuity between brake fluid level switch terminals.
Is the inspection result normal?
YES
>> Inspection End
NO
>> Replace brake fluid level switch.
Special Repair Requirement
INFOID:0000000005484911
1.
ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION
Always perform neutral position adjustment for the steering angle sensor when replacing the ABS actuator
and electric unit (control unit). Refer to
BRC-8, "ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL
.
>> GO TO 2
2.
CALIBRATION OF DECEL G SENSOR
Always perform calibration of decel G sensor when replacing the ABS actuator and electric unit (control unit).
BRC-9, "CALIBRATION OF DECEL G SENSOR : Description"
ABS actuator and electric unit (control unit)
—
Continuity
Connector
Terminal
E127 (A)
8
Ground
No
Brake fluid level switch
—
Continuity
Connector
Terminal
E21
2
Ground
Yes
AWFIA0026ZZ
Brake fluid level switch
Condition
Continuity
Terminal
1
−
2
Brake fluid reservoir full.
No
Brake fluid reservoir empty.
Yes
ALFIA0026ZZ
2010 Pathfinder
C1155 BRAKE FLUID LEVEL SWITCH
BRC-67
< COMPONENT DIAGNOSIS >
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
>> END
2010 Pathfinder
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