Infiniti G37 Coupe. Manual — part 26
ADP-98
< COMPONENT DIAGNOSIS >
RECLINING SENSOR
RECLINING SENSOR
Description
INFOID:0000000001693737
• The reclining motor is installed on the seatback frame.
• The pulse signal is transmitted to the driver seat control unit when reclining is operated.
• The driver seat control unit counts the pulse and calculates the reclining amount of the seat.
Component Function Check
INFOID:0000000001693738
1.
CHECK FUNCTION
1.
Select “RECLN PULSE” in “Data Monitor” mode with CONSULT-III.
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:0000000001693739
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
>> GO TO 7.
NO
>> GO TO 2.
2.
CHECK RECLINING SENSOR CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect driver seat control unit connector 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
Terminals
Condition
Voltage signal
(+)
(–)
Driver seat control unit
Terminal
B503
9
Ground
Seat reclining
Operate
Other than
above
0 or 5
JMJIA0119ZZ
Driver seat control unit
connector
Terminal
Reclining motor
connector
Terminal
Continuity
B503
9
B523
9
Existed
RECLINING SENSOR
ADP-99
< COMPONENT DIAGNOSIS >
C
D
E
F
G
H
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K
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M
A
B
ADP
N
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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
>> GO TO 7.
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.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Repair or replace harness.
6.
CHECK SEAT OPERATION
1.
Connect driver seat control unit connector and reclining motor connector.
Driver seat control unit
connector
Terminal
Ground
Continuity
B503
9
Not existed
Terminals
Voltage (V)
(Approx.)
(+)
(–)
Reclining motor connector
Terminal
B523
16
Ground
5
Driver seat control unit
connector
Terminal
Reclining motor
connector
Terminal
Continuity
B503
16
B523
16
Existed
Driver seat control unit
connector
Terminal
Ground
Continuity
B503
16
Not existed
Driver seat control unit
connector
Terminal
Reclining motor
connector
Terminal
Continuity
B503
31
B523
31
Existed
ADP-100
< COMPONENT DIAGNOSIS >
RECLINING SENSOR
2.
Check seat operation (except reclining operation) with memory function.
Is the operation normal?
YES
>> Replace reclining motor. (Built in seat slide cushion frame.)
NO
>> Replace driver seat control unit.
7.
CHECK INTERMITTENT INCIDENT
GI-38, "Intermittent Incident"
Is the inspection result normal?
YES
>> Replace driver seat control unit. Refer to
ADP-236, "Removal and Installation"
NO
>> Repair or replace the malfunctioning part.
LIFTING SENSOR (FRONT)
ADP-101
< COMPONENT DIAGNOSIS >
C
D
E
F
G
H
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M
A
B
ADP
N
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LIFTING SENSOR (FRONT)
Description
INFOID:0000000001693740
• The lifting sensor (front) is installed on the seat slide cushion frame.
• The pulse signal is transmitted to the driver seat control unit when 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:0000000001693741
1.
CHECK FUNCTION
1.
Select “LIFT FR PULSE” in “Data Monitor” mode with CONSULT-III.
2.
Check 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
ADP-101, "Diagnosis Procedure"
Diagnosis Procedure
INFOID:0000000001693742
1.
CHECK LIFTING SENSOR (FRONT) 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
>> GO TO 7.
NO
>> GO TO 2.
2.
CHECK LIFTING SENSOR (FRONT) CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect driver seat control unit connector 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
Terminals
Condition
Voltage signal
(+)
(–)
Driver seat control unit
Terminal
B503
25
Ground
Seat Lifting
(front)
Operate
Other than
above
0 or 5
JMJIA0119ZZ
Driver seat control unit
connector
Terminal
Lifting motor (front)
connector
Terminal
Continuity
B503
25
B527
25
Existed
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