Nissan Pathfinder (2006 year). Instruction — part 128
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
BRC-109
[HDC/HSA/VDC/TCS/ABS]
C
D
E
G
H
I
J
K
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M
A
B
BRC
2006 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-110
[HDC/HSA/VDC/TCS/ABS]
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
2006 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-132, "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)
harness connector E125
Body
ground
Measured
value
(Approx.)
32
—
12V
WFIA0195E
ABS actuator and electric
unit (control unit)
harness connector E125
Body
ground
Measured
value
Ω
(Approx.)
16
—
0
Ω
47
—
0
Ω
WFIA0196E
Self-diagnosis results
PUMP MOTOR
ACTUATOR RLY
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
BRC-111
[HDC/HSA/VDC/TCS/ABS]
C
D
E
G
H
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J
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M
A
B
BRC
2006 Pathfinder
3.
CHECKING ABS MOTOR AND MOTOR RELAY POWER SYSTEM
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) 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-132, "Removal and Installation"
NG
>> Repair the circuit.
Stop Lamp Switch System Inspection
EFS00670
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 the ABS actuator and electric unit (control unit) connector E125 and stop lamp switch connec-
tor E38.
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)
harness connector E125
Body
ground
Measured
value
(Approx.)
1
—
12V
WFIA0209E
ABS actuator and electric
unit (control unit)
harness connector E125
Body
ground
Measured
value
Ω
(Approx.)
16
—
0
Ω
47
—
0
Ω
WFIA0196E
Self-diagnosis results
STOP LAMP SW
BRC-112
[HDC/HSA/VDC/TCS/ABS]
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
2006 Pathfinder
3.
STOP LAMP SWITCH INSPECTION
Check the voltage between the ABS actuator and electric unit (con-
trol unit) harness connector E125 terminal 41 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-132, "Removal and Installation"
NG
>> GO TO 4.
4.
STOP LAMP RELAY CIRCUIT INSPECTION
1.
Disconnect the stop lamp relay harness connector E12.
2.
Check the continuity between the ABS actuator and electric unit
(control unit) harness connector E125 terminal 41 and stop lamp
relay harness connector E12 terminal 5.
OK or NG
OK
>> Perform self-diagnosis again. If the same results
appear, replace ABS actuator and electric unit (control
unit). Refer to
BRC-132, "Removal and Installation"
NG
>> Refer to
ABS/TCS/VDC Control Unit Power and Ground Systems Inspection
EFS00671
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 the 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.
Brake pedal depressed
: Battery voltage
(approx. 12V)
Brake pedal not depressed
: Approx. 0V
WFIA0198E
Continuity should exist.
WFIA0325E
Self-diagnosis results
BATTERY VOLTAGE
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
BRC-113
[HDC/HSA/VDC/TCS/ABS]
C
D
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G
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J
K
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M
A
B
BRC
2006 Pathfinder
3.
ABS/TCS/VDC CONTROL UNIT POWER AND GROUND CIRCUIT INSPECTION
Measure the voltage and continuity between the ABS actuator and electric unit (control unit) harness connec-
tor E125 and body ground.
OK or NG
OK
>> Check the battery for loose terminals, low voltage, etc. Repair as necessary.
NG
>> Repair the circuit.
Brake Fluid Level Switch System Inspection
EFS00672
INSPECTION PROCEDURE
1.
SELF-DIAGNOSIS RESULT CHECK
1.
Check the brake reservoir tank fluid level. If the level is low, add brake fluid.
2.
Erase the self-diagnosis results and check the 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 the ABS actuator and electric unit (control unit) connector E125 and brake fluid level switch
connector E21.
2.
Check the terminals for deformation, disconnection, looseness or damage.
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace as necessary.
3.
CHECK THE HARNESS BETWEEN THE BRAKE FLUID LEVEL SWITCH AND THE ABS ACTUATOR
AND ELECTRIC UNIT (CONTROL UNIT)
Check the continuity between the brake fluid level switch harness connector E21 and the ABS actuator and
electric unit (control unit) harness connector E125.
OK or NG
OK
>> GO TO 4.
NG
>> Repair the circuit.
Signal name
ABS actuator and electric unit
(control unit)
harness connector E125
Body
ground
Measured value
Power supply
1
—
Battery voltage (Approx. 12V)
32
Ground
16
—
Continuity should exist.
47
Self-diagnosis results
BR FLUID LEVEL LOW
ABS actuator and electric unit
(control unit) harness connector
E125
Brake fluid level switch harness
connector E21
Continuity
8
1
Yes
8
Ground
No
Ground
2
Yes
BRC-114
[HDC/HSA/VDC/TCS/ABS]
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
2006 Pathfinder
4.
CHECK BRAKE FLUID LEVEL SWITCH
Check continuity between brake fluid level switch terminals 1 and 2.
OK or NG
OK
>> Perform self-diagnosis again. If the same results appear, replace ABS actuator and electric unit
(control unit). Refer to
BRC-132, "Removal and Installation"
NG
>> Replace brake fluid level switch.
Active Booster System Inspection
EFS00673
INSPECTION PROCEDURE
1.
DISPLAY SELF DIAGNOSIS RESULTS
Check self-diagnosis result display item.
Is the self-diagnosis result display item shown above displayed?
YES
>> GO TO 2.
NO
>> Inspection End.
2.
CONNECTOR INSPECTION
1.
Turn the ignition switch OFF.
2.
Disconnect the active booster connector E49 and ABS actuator and electric unit (control unit) connector
E125 and inspect the terminals for deformation, disconnection, looseness, or damage.
OK or NG
OK
>> GO TO 3.
NG
>> Repair connector.
Continuity should not exist.
Self-diagnosis results
ABS ACTIVE BOOSTER SV NG
ABS ACTIVE BOOSTER RESPONSE NG
ABS BRAKE RELEASE SW NG
ABS BRAKE BOOSTER DEFECT
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
BRC-115
[HDC/HSA/VDC/TCS/ABS]
C
D
E
G
H
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M
A
B
BRC
2006 Pathfinder
3.
ACTIVE BOOSTER CIRCUIT INSPECTION
1.
Measure the continuity between the ABS actuator and electric unit (control unit) harness connector E125
and active booster harness connector E49.
2.
Measure the continuity between the ABS actuator and electric unit (control unit) harness connector E125
and body ground.
OK or NG
OK
>> GO TO 4.
NG
>> Repair or replace harness or connector.
4.
ACTIVE BOOSTER SENSOR INSPECTION
1.
Reconnect the active booster and ABS actuator and electric unit (control unit) connectors.
2.
Use "DATA MONITOR" to check if the status of "RELEASE SW NO" and "RELEASE SW NC" is normal.
OK or NG
OK
>> Inspection End.
NG
>> Replace active booster. Refer to
BR-19, "Removal and Installation"
.
Pressure Sensor System Inspection
EFS00674
FRONT PRESSURE INSPECTION PROCEDURE
1.
DISPLAY SELF DIAGNOSIS RESULTS
Check self-diagnosis result display item.
Is the self-diagnosis result display item shown above displayed?
YES
>> GO TO 2.
NO
>> Inspection End.
ABS actuator and electric unit (con-
trol unit) harness connector E125
Active booster harness con-
nector E49
Continuity
17
3
Yes
27
1
28
5
30
2
31
4
ABS actuator and electric unit (con-
trol unit) harness connector E125
Body ground
Continuity
17
—
No
27
28
30
31
Condition
Data monitor display
RELEASE SW NO
RELEASE SW NC
When brake pedal is depressed
ON
OFF
When brake pedal is released
OFF
ON
Self-diagnosis results
PRESS SEN CIRCUIT
BRC-116
[HDC/HSA/VDC/TCS/ABS]
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
2006 Pathfinder
2.
CONNECTOR INSPECTION
1.
Turn the ignition switch OFF.
2.
Disconnect the front pressure sensor connector E31 and ABS actuator and electric unit (control unit) con-
nector E125 and inspect the terminals for deformation, disconnection, looseness, or damage.
OK or NG
OK
>> GO TO 3.
NG
>> Repair connector.
3.
FRONT PRESSURE SENSOR CIRCUIT INSPECTION
1.
Measure the continuity between the ABS actuator and electric unit (control unit) harness connector E125
and front pressure sensor harness connector E31.
2.
Measure the continuity between the ABS actuator and electric unit (control unit) harness connector E125
and body ground.
OK or NG
OK
>> GO TO 4.
NG
>> Repair or replace harness or connector.
4.
FRONT PRESSURE SENSOR INSPECTION
1.
Reconnect the front pressure sensor and ABS actuator and electric unit (control unit) connectors.
2.
Use "DATA MONITOR" to check if the status of "PRESS SENSOR" is normal.
OK or NG
OK
>> Inspection End.
NG
>> Replace front pressure sensor.
REAR PRESSURE INSPECTION PROCEDURE
1.
DISPLAY SELF DIAGNOSIS RESULTS
Check self-diagnosis result display item.
Is the self-diagnosis result display item shown above displayed?
YES
>> GO TO 2.
NO
>> Inspection End.
ABS actuator and electric unit (control
unit) harness connector E125
Front pressure sensor harness
connector E31
Continuity
18
3
Yes
19
1
20
2
ABS actuator and electric unit (control
unit) harness connector E125
Body ground
Continuity
18
—
No
19
20
Condition
Data monitor display (Approx.)
PRESS SENSOR
When brake pedal is depressed
Positive value
When brake pedal is released
0 bar
Self-diagnosis results
PRESS SEN CIRCUIT
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