Nissan Murano Z51. Instruction — part 23
ADP-84
< DTC/CIRCUIT DIAGNOSIS >
LIFTING SENSOR (FRONT)
LIFTING SENSOR (FRONT)
Description
INFOID:0000000005515372
• 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:0000000005515373
1.
CHECK FUNCTION
1.
Select “LIFT FR PULSE” in “Data monitor” mode with CONSULT-III.
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:0000000005515374
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-209, "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
LIFTING SENSOR (FRONT)
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 LIFTING SENSOR (FRONT) POWER SUPPLY
1.
Connect driver seat control unit connector.
2.
Turn ignition switch ON.
3.
Check voltage between lifting motor (front) harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> GO TO 4.
4.
CHECK LIFTING SENSOR (FRONT) 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 lifting motor (front) harness con-
nector.
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-209, "Removal and Installation"
NO
>> Repair or replace harness or connector.
5.
CHECK LIFTING SENSOR (FRONT) GROUND
1.
Turn ignition switch OFF.
2.
Check continuity between lifting motor (front) harness connector and ground.
Is the inspection result normal?
Driver seat control unit
Lifting motor (front)
Continuity
Connector
Terminal
Connector
Terminal
B452
22
B455
22
Existed
Driver seat control unit
Ground
Continuity
Connector
Terminal
B452
22
Not existed
(+)
(–)
Voltage (V)
(Approx.)
Lifting motor (front)
Connector
Terminals
B455
33
Ground
Battery voltage
Driver seat control unit
Lifting motor (front)
Continuity
Connector
Terminal
Connector
Terminal
B452
33
B455
33
Existed
Driver seat control unit
Ground
Continuity
Connector
Terminal
B452
33
Not existed
Lifting motor (front)
Ground
Continuity
Connector
Terminal
B455
48
Existed
ADP-86
< DTC/CIRCUIT DIAGNOSIS >
LIFTING SENSOR (FRONT)
YES
>> Replace lifting motor (front).
NO
>> Repair or replace harness or connector.
LIFTING SENSOR (REAR)
ADP-87
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
K
L
M
A
B
ADP
N
O
P
LIFTING SENSOR (REAR)
Description
INFOID:0000000005515375
• The lifting sensor (rear) is installed to the seat cushion frame.
• The pulse signal is inputted to the driver seat control unit when the lifting (rear) is operated.
• The driver seat control unit counts the pulse and calculates the lifting (rear) amount of the seat.
Component Function Check
INFOID:0000000005515376
1.
CHECK FUNCTION
1.
Select “LIFT RR PULSE” in “Data monitor” mode with CONSULT-III.
2.
Check lifting sensor (rear) 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:0000000005515377
1.
CHECK LIFTING SENSOR (REAR) 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-209, "Removal and Installation"
NO
>> GO TO 2.
2.
CHECK LIFTING SENSOR (REAR) CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect driver seat control unit and lifting motor (rear) connector.
3.
Check the continuity between driver seat control unit harness connector and lifting motor (rear) harness
connector.
Monitor item
Condition
Value
LIFT RR PULSE
Seat lifting (rear)
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
21
Ground
Seat Lifting
(rear)
Operate
Other than
above
0 or 5
JMJIA0119ZZ
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