Nissan Pathfinder (2005 year). Instruction — part 121
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
BRC-45
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
2005 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-61, "Removal and Installation"
.
NG
>> Repair the circuit.
Actuator Motor, Motor Relay, and Circuit Inspection
EFS004N9
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
CONSULT-II display items
PUMP MOTOR
ACTUATOR RLY
BRC-46
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
2005 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-61, "Removal and Installation"
.
NG
>> Repair the circuit.
Stop Lamp Switch System Inspection
EFS004NA
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
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
BRC-47
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
2005 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-61, "Removal and Installation"
.
NG
>> Refer to
.
ABS/TCS/VDC Control Unit Power and Ground Systems Inspection
EFS004NB
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.
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 pedal depressed
: Battery voltage
(approx. 12V)
Brake pedal not depressed
: Approx. 0V
WFIA0198E
Self-diagnosis results
BATTERY VOLTAGE
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
BRC-48
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
2005 Pathfinder
Brake Fluid Level Sensor System Inspection
EFS004NC
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 SENSOR 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
>> Perform self-diagnosis again. If the same results appear, replace ABS actuator and electric unit
(control unit). Refer to
BRC-61, "Removal and Installation"
.
NG
>> Repair the circuit.
Pressure Sensor System Inspection
EFS004NF
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.
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
Self-diagnosis results
PRESS SEN CIRCUIT
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
BRC-49
[VDC/TCS/ABS]
C
D
E
G
H
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J
K
L
M
A
B
BRC
2005 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.
Steering Angle Sensor Safe Mode Inspection
EFS005A0
INSPECTION PROCEDURE
1.
INDICATOR LAMP CHECK
Check that VDC OFF indicator lamp is on.
OK or NG
OK
>> GO TO 2.
NG
>> GO TO 3.
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
BRC-50
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
2005 Pathfinder
2.
ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION
Adjust steering angle sensor neutral position. Refer to
BRC-57, "Adjustment of Steering Angle Sensor Neutral
.
OK or NG
OK
>> GO TO 3.
NG
>> Check steering angle sensor. Refer to
BRC-40, "Steering Angle Sensor System"
.
3.
INDICATOR LAMP CHECK
Check that VDC OFF indicator lamp is off.
OK or NG
OK
>> GO TO 4.
NG
>> Perform basic inspection. Refer to
.
4.
CHECK SELF-DIAGNOSTIC RESULTS
Perform ABS actuator and electric unit (control unit) self-diagnosis.
NOTE:
When self-diagnostic results show items other than those above, perform repair or replacement for the item
indicated and repeat self-diagnosis.
Is the above displayed on self-diagnosis display?
YES
>> Erase error memory.
NO
>> Inspection End.
CAN Communication System Inspection
EFS004NG
INSPECTION PROCEDURE
1.
CHECK CONNECTOR
1.
Turn ignition switch OFF, disconnect the ABS actuator and electric unit (control unit) connector, and check
the terminals for deformation, disconnection, looseness, and so on. If there is a malfunction, repair or
replace the terminal.
2.
Reconnect connector to perform self-diagnosis.
Is "CAN COMM CIRCUIT" displayed in self-diagnosis display items?
YES
>> Print out the self-diagnostic results, and refer to
.
NO
>> Connector terminal is loose, damaged, open, or shorted.
Inspection For Self-diagnosis Result "ST ANGLE SEN SIGNAL"
EFS004NH
INSPECTION PROCEDURE
1.
PERFORM SELF-DIAGNOSIS
Perform ABS actuator and electric unit (control unit) self-diagnosis.
Do self-diagnosis results indicate anything other than shown above?
YES
>> Perform repair or replacement for the item indicated.
NO
>> Perform adjustment of steering angle sensor neutral position. Refer to
Steering Angle Sensor Neutral Position"
. GO TO 2.
Self-diagnosis results
ST ANGL SEN SAFE
Self-diagnosis results
ST ANGLE SEN SIGNAL
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
BRC-51
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
2005 Pathfinder
2.
PERFORM SELF-DIAGNOSIS AGAIN
1.
Turn the ignition switch to OFF and then to ON and erase self-diagnosis results.
2.
Perform ABS actuator and electric unit (control unit) self-diagnosis again.
Are any self-diagnosis results displayed?
YES
>> Replace steering angle sensor. Refer to
BRC-63, "Removal and Installation"
.
NO
>> Inspection End.
Inspection For Self-diagnosis Result "DECEL G SEN SET"
EFS004NI
INSPECTION PROCEDURE
1.
PERFORM SELF-DIAGNOSIS
Perform ABS actuator and electric unit (control unit) self-diagnosis.
Do self-diagnosis results indicate anything other than shown above?
YES
>> Perform repair or replacement for the item indicated.
NO
>> Perform calibration of decel G sensor. Refer to
BRC-57, "Calibration of Yaw Rate/Side/Decel G
. GO TO 2.
2.
PERFORM SELF-DIAGNOSIS AGAIN
1.
Turn the ignition switch to OFF and then to ON and erase self-diagnosis results.
2.
Perform ABS actuator and electric unit (control unit) self-diagnosis again.
Are any self-diagnosis results displayed?
YES
>> Replace decel G sensor. Refer to
BRC-64, "Removal and Installation"
.
NO
>> Inspection End.
VDC OFF Indicator lamp Does Not Illuminate
EFS004NJ
INSPECTION PROCEDURE
1.
CHECK VDC OFF INDICATOR LAMP
Disconnect ABS actuator and electric unit (control unit) connector E125.
Do the ABS warning lamp and VDC OFF indicator lamp illuminate?
YES
>> Replace ABS actuator and electric unit (control unit). Refer to
BRC-61, "Removal and Installation"
.
NO
>> Replace combination meter. Refer to
.
Component Inspection
EFS004NK
VDC OFF SWITCH
Check the continuity between terminals 1 and 2.
Self-diagnosis results
DECEL G SEN SET
1 - 2
: Continuity should exist when pushing the
switch.
Continuity should not exist when releasing
the switch.
PFIA0307E
BRC-52
[VDC/TCS/ABS]
TROUBLE DIAGNOSES FOR SYMPTOMS
2005 Pathfinder
TROUBLE DIAGNOSES FOR SYMPTOMS
PFP:99999
ABS Works Frequently
EFS004NL
1.
CHECK WARNING LAMP ACTIVATION
Make sure warning lamp remains off while driving.
OK or NG
OK
>> GO TO 2.
NG
>> Carry out self-diagnosis. Refer to
.
2.
CHECK WHEEL SENSORS
Check the following.
●
Wheel sensor mounting for looseness
●
Wheel sensors for physical damage
●
Wheel sensor connectors for terminal damage or loose connections
●
Sensor rotor and mount for physical damage (rear only)
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace as necessary.
3.
CHECK FRONT AND REAR AXLES
Check front and rear axles for excessive looseness. Refer to
FAX-5, "WHEEL BEARING INSPECTION"
or
RAX-5, "WHEEL BEARING INSPECTION"
.
OK or NG
OK
>> GO TO 4.
NG
>> Repair as necessary.
4.
CHECK BRAKE FLUID PRESSURE
Check brake fluid pressure distribution.
Refer to
.
Is brake fluid pressure distribution normal?
YES
>> Inspection End.
NO
>> Perform Basic Inspection. Refer to
.
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