Nissan Frontier. Instruction — part 167
BRC-196
< DTC/CIRCUIT DIAGNOSIS >
[TYPE 2]
HILL DESCENT CONTROL SWITCH
HILL DESCENT CONTROL SWITCH
Description
INFOID:0000000009479505
The hill descent control switch activates (turn ON) the hill descent control function when the hill descent con-
trol switch is pressed.
Component Function Check
INFOID:0000000009479506
1.
CHECK HILL DESCENT CONTROL SWITCH OPERATION
Turn ON/OFF the hill descent control switch and check that the hill descent control indicator lamp in the com-
bination meter turns ON/OFF correctly.
Is the inspection result normal?
YES
>> Inspection End
NO
>> Go to diagnosis procedure. Refer to
BRC-196, "Diagnosis Procedure"
Diagnosis Procedure
INFOID:0000000009479507
Regarding Wiring Diagram information, refer to
BRC-213, "Wiring Diagram - VDC WITH HILL DESCENT
1.
CHECK HILL DESCENT CONTROL SWITCH
Perform the hill descent control switch component inspection. Refer to
BRC-197, "Component Inspection"
.
Is the inspection result normal?
YES
>> GO TO 2
NO
>> Replace hill descent control switch.
2.
CHECK HILL DESCENT CONTROL SWITCH HARNESS
1. Disconnect ABS actuator and electric unit (control unit) connector.
2. Check continuity between ABS actuator and electric unit (control unit) connector E127 (A) terminal 25 and
hill descent control switch connector M155 (B) terminal 2.
3. Check continuity between ABS actuator and electric unit (control unit) connector E127 (A) terminal 25 and
ground.
Is the inspection result normal?
YES
>> GO TO 3
NO
>> Repair or replace harness.
3.
CHECK HILL DESCENT CONTROL SWITCH GROUND
Condition
Hill descent control indicator lamp illumina-
tion status
Hill descent control switch: ON
ON
Hill descent control switch: OFF
OFF
ABS actuator and electric unit
(control unit)
Hill descent control switch
Continuity
Connector
Terminal
Connector
Terminal
E127 (A)
25
M155 (B)
2
Yes
ABS actuator and electric unit (control unit)
—
Continuity
Connector
Terminal
E127 (A)
25
Ground
No
HILL DESCENT CONTROL SWITCH
BRC-197
< DTC/CIRCUIT DIAGNOSIS >
[TYPE 2]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
Check continuity between hill descent control switch connector
M155 terminal 1 and ground.
Is the inspection result normal?
YES
>> GO TO 4
NO
>> Repair or replace harness.
4.
CHECK COMBINATION METER
Check if the indication and operation of combination meter are normal. Refer to
.
Is the inspection result normal?
YES
>> Replace ABS actuator and electric unit (control unit). Refer to
BRC-236, "Removal and Installa-
.
NO
>> Replace combination meter. Refer to
MWI-90, "Removal and Installation"
Component Inspection
INFOID:0000000009479508
1.
CHECK HILL DESCENT CONTROL SWITCH
1. Turn ignition switch OFF.
2. Disconnect hill descent control switch connector.
3. Check continuity between hill descent control switch terminals.
Is the inspection result normal?
YES
>> Inspection End
NO
>> Replace hill descent control switch.
Special Repair Requirement
INFOID:0000000009479509
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-124, "ADJUSTMENT OF STEERING ANGLE SENSOR NEU-
>> 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-125, "CALIBRATION OF DECEL G SENSOR : Description"
.
>> END
Hill descent control switch
—
Continuity
Connector
Terminal
M155
1
Ground
Yes
AWFIA0220ZZ
Hill descent control
switch terminals
Condition
Continuity
1
− 2
Hill descent control switch is ON.
Yes
Hill descent control switch is OFF.
No
BRC-198
< DTC/CIRCUIT DIAGNOSIS >
[TYPE 2]
VDC OFF SWITCH
VDC OFF SWITCH
Description
INFOID:0000000009479510
VDC OFF switch can deactivate (turn OFF) the VDC/TCS function by pressing the VDC OFF switch.
Component Function Check
INFOID:0000000009479511
1.
CHECK VDC OFF SWITCH OPERATION
Press and release the VDC OFF switch, then press and release the VDC OFF switch again and check that the
VDC OFF indicator lamp in the combination meter turns ON/OFF correctly.
Is the inspection result normal?
YES
>> Inspection End
NO
>> Go to diagnosis procedure. Refer to
BRC-198, "Diagnosis Procedure"
Diagnosis Procedure
INFOID:0000000009479512
Regarding Wiring Diagram information, refer to
BRC-213, "Wiring Diagram - VDC WITH HILL DESCENT
1.
CHECK VDC OFF SWITCH
Perform the VDC OFF switch component inspection. Refer to
BRC-199, "Component Inspection"
.
Is the inspection result normal?
YES
>> GO TO 2
NO
>> Replace VDC OFF switch.
2.
CHECK VDC OFF SWITCH HARNESS
1. Disconnect ABS actuator and electric unit (control unit) connector.
2. Check continuity between ABS actuator and electric unit (control unit) connector E127 (A) terminal 6 and
VDC OFF switch connector M154 (B) terminal 1.
3. Check continuity between ABS actuator and electric unit (control unit) connector E127 (A) terminal 6 and
ground.
Is the inspection result normal?
YES
>> GO TO 3
NO
>> Repair or replace harness.
3.
CHECK VDC OFF SWITCH GROUND
Condition
VDC OFF indicator lamp illumination status
VDC OFF switch: pressed and released
ON
VDC OFF switch: pressed and released
OFF
ABS actuator and electric unit
(control unit)
VDC OFF switch
Continuity
Connector
Terminal
Connector
Terminal
E127 (A)
6
M154 (B)
1
Yes
ABS actuator and electric unit (control unit)
—
Continuity
Connector
Terminal
E127 (A)
6
Ground
No
VDC OFF SWITCH
BRC-199
< DTC/CIRCUIT DIAGNOSIS >
[TYPE 2]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
Check continuity between VDC OFF switch connector M154 terminal
2 and ground.
Is the inspection result normal?
YES
>> GO TO 4
NO
>> Repair or replace harness.
4.
CHECK COMBINATION METER
Check if the indication and operation of combination meter are normal. Refer to
.
Is the inspection result normal?
YES
>> Replace ABS actuator and electric unit (control unit). Refer to
BRC-236, "Removal and Installa-
.
NO
>> Replace combination meter. Refer to
MWI-90, "Removal and Installation"
Component Inspection
INFOID:0000000009479513
1.
CHECK VDC OFF SWITCH
1. Turn ignition switch OFF.
2. Disconnect VDC OFF switch connector.
3. Check continuity between VDC OFF switch terminals.
Is the inspection result normal?
YES
>> Inspection End
NO
>> Replace VDC OFF switch.
Special Repair Requirement
INFOID:0000000009479514
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-124, "ADJUSTMENT OF STEERING ANGLE SENSOR NEU-
>> 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-125, "CALIBRATION OF DECEL G SENSOR : Description"
.
>> END
VDC OFF switch
—
Continuity
Connector
Terminal
M154
2
Ground
Yes
AWFIA0031ZZ
VDC OFF switch terminals
Condition
Continuity
1
− 2
VDC OFF switch pressed.
Yes
VDC OFF switch released.
No
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