Infiniti FX35, FX50 (S51). Manual — part 25
ADP-92
< DTC/CIRCUIT DIAGNOSIS >
RECLINING SENSOR
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.
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-215, "Removal and Installation"
NO
>> Repair or replace harness.
5.
CHECK RECLINING SENSOR GROUND
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.
Driver seat control unit
Reclining motor
Continuity
Connector
Terminal
Connector
Terminal
B451
9
B454
9
Existed
Driver seat control unit
Ground
Continuity
Connector
Terminal
B451
9
Not existed
(+)
(–)
Voltage (V)
(Approx.)
Reclining motor
Connector
Terminal
B454
16
Ground
5
Driver seat control unit
Reclining motor
Continuity
Connector
Terminal
Connector
Terminal
B451
16
B454
16
Existed
Driver seat control unit
Ground
Continuity
Connector
Terminal
B451
16
Not existed
Driver seat control unit
Reclining motor
Continuity
Connector
Terminal
Connector
Terminal
B451
31
B454
31
Existed
RECLINING SENSOR
ADP-93
< 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 reclining motor.
NO
>> Repair or replace harness.
ADP-94
< DTC/CIRCUIT DIAGNOSIS >
LIFTING SENSOR (FRONT)
LIFTING SENSOR (FRONT)
Description
INFOID:0000000005249732
• The lifting sensor (front) is installed to the seat slide 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:0000000005249733
1.
CHECK FUNCTION
1.
Turn ignition switch ON.
2.
Select “LIFT FR PULSE” in “Data monitor” mode with CONSULT-III.
3.
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:0000000005249734
1.
CHECK LIFTING SENSOR (FRONT) SIGNAL
1.
Turn ignition switch ON.
2.
Check the voltage signal 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 (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
Terminal
B451
25
Ground
Seat Lifting
(front)
Operate
Other than
above
0 or 5
JMJIA0119ZZ
LIFTING SENSOR (FRONT)
ADP-95
< 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.
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-215, "Removal and Installation"
NO
>> Repair or replace harness.
5.
CHECK LIFTING SENSOR (FRONT) GROUND
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.
Driver seat control unit
Lifting motor (front)
Continuity
Connector
Terminal
Connector
Terminal
B451
25
B455
25
Existed
Driver seat control unit
Ground
Continuity
Connector
Terminal
B451
25
Not existed
(+)
(–)
Voltage (V)
(Approx.)
Lifting motor (front)
Connector
Terminal
B455
16
Ground
5
Driver seat control unit
Lifting motor (front)
Continuity
Connector
Terminal
Connector
Terminal
B451
16
B455
16
Existed
Driver seat control unit
Ground
Continuity
Connector
Terminal
B451
16
Not existed
Driver seat control unit
Lifting motor (front)
Continuity
Connector
Terminal
Connector
Terminal
B451
31
B455
31
Existed
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