Nissan Murano. Instruction — part 23
ADP-84
< DTC/CIRCUIT DIAGNOSIS >
RECLINING SENSOR
RECLINING SENSOR
Description
INFOID:0000000009720726
• The reclining motor is installed to the seatback frame.
• The pulse signal is inputted to the driver seat control unit when the reclining is operated.
• The driver seat control unit counts the pulse and calculates the reclining amount of the seat.
Component Function Check
INFOID:0000000009720727
1.
CHECK FUNCTION
1.
Select “RECLN PULSE” in “Data monitor” mode with CONSULT.
2.
Check reclining sensor signal under the following conditions.
*1
: The value at the seat position attained when the battery is connected is considered to be 32768.
Is the indication normal?
YES
>> INSPECTION END
NO
>> Perform diagnosis procedure. Refer to
Diagnosis Procedure
INFOID:0000000009720728
1.
CHECK RECLINING SENSOR SIGNAL
1.
Turn ignition switch ON.
2.
Read voltage signal between driver seat control unit harness connector and ground with oscilloscope.
Is the inspection result normal?
YES
>> Replace driver seat control unit. Refer to
ADP-210, "Removal and Installation"
NO
>> GO TO 2.
2.
CHECK RECLINING SENSOR CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect driver seat control unit and reclining motor connector.
3.
Check continuity between driver seat control unit harness connector and reclining motor harness connec-
tor.
Monitor item
Condition
Value
RECLN PULSE
Seat reclining
Operate (forward)
Change (increase)
*1
Operate (backward)
Change (decrease)
*1
Release
No change
*1
(+)
(–)
Condition
Signal
(Reference value)
Driver seat control unit
Connector
Terminals
B452
20
Ground
Seat reclining
Operate
Other than
above
0 or 5
JMJIA0119ZZ
RECLINING SENSOR
ADP-85
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
K
L
M
A
B
ADP
N
O
P
4.
Check continuity between driver seat control unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace harness or connector.
3.
CHECK RECLINING SENSOR POWER SUPPLY
1.
Connect driver seat control unit connector.
2.
Turn ignition switch ON.
3.
Check voltage between reclining motor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> GO TO 4.
4.
CHECK RECLINING SENSOR POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect driver seat control unit connector.
3.
Check continuity between driver seat control unit harness connector and reclining motor harness connec-
tor.
4.
Check continuity between driver seat control unit harness connector and ground.
Is the inspection result normal?
YES
>> Replace driver seat control unit. Refer to
ADP-210, "Removal and Installation"
NO
>> Repair or replace harness or connector.
5.
CHECK RECLINING SENSOR GROUND
1.
Turn ignition switch OFF.
2.
Check continuity between reclining motor harness connector and ground.
Is the inspection result normal?
Driver seat control unit
Reclining motor
Continuity
Connector
Terminal
Connector
Terminal
B452
20
B454
20
Existed
Driver seat control unit
Ground
Continuity
Connector
Terminal
B452
20
Not existed
(+)
(–)
Voltage (V)
(Approx.)
Reclining motor
Connector
Terminals
B454
33
Ground
Battery voltage
Driver seat control unit
Reclining motor
Continuity
Connector
Terminal
Connector
Terminal
B452
33
B454
33
Existed
Driver seat control unit
Ground
Continuity
Connector
Terminal
B452
33
Not existed
Reclining motor
Ground
Continuity
Connector
Terminal
B454
46
Existed
ADP-86
< DTC/CIRCUIT DIAGNOSIS >
RECLINING SENSOR
YES
>> Replace reclining motor.
NO
>> Repair or replace harness or connector.
LIFTING SENSOR (FRONT)
ADP-87
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
K
L
M
A
B
ADP
N
O
P
LIFTING SENSOR (FRONT)
Description
INFOID:0000000009720729
• The lifting sensor (front) is installed to the seat cushion frame.
• The pulse signal is inputted to the driver seat control unit when the lifting (front) is operated.
• The driver seat control unit counts the pulse and calculates the lifting (front) amount of the seat.
Component Function Check
INFOID:0000000009720730
1.
CHECK FUNCTION
1.
Select “LIFT FR PULSE” in “Data monitor” mode with CONSULT.
2.
Check the lifting sensor (front) signal under the following conditions.
*1
:The value at the seat position attained when the battery is connected is considered to be 32768.
Is the indication normal?
YES
>> INSPECTION END
NO
>> Perform diagnosis procedure. Refer to
Diagnosis Procedure
INFOID:0000000009720731
1.
CHECK LIFTING SENSOR (FRONT) SIGNAL
1.
Turn ignition switch ON.
2.
Read the voltage signal driver seat control unit harness connector and ground with an oscilloscope.
Is the inspection result normal?
YES
>> Replace driver seat control unit. Refer to
ADP-210, "Removal and Installation"
NO
>> GO TO 2.
2.
CHECK LIFTING SENSOR (FRONT) CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect driver seat control unit and lifting motor (front) connector.
3.
Check continuity between driver seat control unit harness connector and lifting motor (front) harness con-
nector.
Monitor item
Condition
Value
LIFT FR PULSE
Seat lifting (front)
Operate (Up)
Change (increase)
*1
Operate (Down)
Change (decrease)
*1
Release
No change
*1
(+)
(–)
Condition
Voltage (V)
(Approx.)
Driver seat control unit
Connector
Terminals
B452
22
Ground
Seat Lifting
(front)
Operate
Other than
above
0 or 5
JMJIA0119ZZ
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