Infiniti FX35, FX50 (S51). Manual — part 26
ADP-96
< DTC/CIRCUIT DIAGNOSIS >
LIFTING SENSOR (FRONT)
Is the inspection result normal?
YES
>> Replace lifting motor (front).
NO
>> Repair or replace harness.
LIFTING SENSOR (REAR)
ADP-97
< DTC/CIRCUIT DIAGNOSIS >
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LIFTING SENSOR (REAR)
Description
INFOID:0000000005249735
• The lifting sensor (rear) is installed to the seat slide 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:0000000005249736
1.
CHECK FUNCTION
1.
Turn ignition switch ON.
2.
Select “LIFT RR PULSE” in “Data monitor” mode with CONSULT-III.
3.
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:0000000005249737
1.
CHECK LIFTING SENSOR (REAR) SIGNAL
1.
Turn ignition switch ON.
2.
Check 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-215, "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
Terminal
B451
10
Ground
Seat Lifting
(rear)
Operate
Other than above
0 or 5
JMJIA0119ZZ
ADP-98
< DTC/CIRCUIT DIAGNOSIS >
LIFTING SENSOR (REAR)
4.
Check the continuity between driver seat control unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace harness.
3.
CHECK LIFTING SENSOR (REAR) POWER SUPPLY
1.
Connect driver seat control unit connector.
2.
Turn ignition switch ON.
3.
Check the voltage between lifting motor (rear) harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> GO TO 4.
4.
CHECK LIFTING SENSOR (REAR) POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect driver seat control unit connector.
3.
Check the continuity between driver seat control unit harness connector and lifting motor (rear) harness
connector.
4.
Check the continuity between driver seat control unit harness connector and ground.
Is the inspection result normal?
YES
>> Replace driver seat control unit. Refer to
ADP-215, "Removal and Installation"
NO
>> Repair or replace harness.
5.
CHECK LIFTING SENSOR (REAR) GROUND
1.
Turn ignition switch OFF.
2.
Disconnect driver seat control unit connector.
3.
Check the continuity between driver seat control unit harness connector and lifting motor (rear) harness
connector.
Driver seat control unit
Lifting motor (rear)
Continuity
Connector
Terminal
Connector
Terminal
B451
10
B456
10
Existed
Driver seat control unit
Ground
Continuity
Connector
Terminal
B451
10
Not Existed
(+)
(–)
Voltage (V)
(Approx.)
Lifting motor (rear)
Connector
Terminal
B456
16
Ground
5
Driver seat control unit
Lifting motor (rear)
Continuity
Connector
Terminal
Connector
Terminal
B451
16
B456
16
Existed
Driver seat control unit
Ground
Continuity
Connector
Terminal
B451
16
Not existed
Driver seat control unit
Lifting motor (rear)
Continuity
Connector
Terminal
Connector
Terminal
B451
31
B456
31
Existed
LIFTING SENSOR (REAR)
ADP-99
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
K
L
M
A
B
ADP
N
O
P
Is the inspection result normal?
YES
>> Replace lifting motor (rear).
NO
>> Repair or replace harness.
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