Infiniti G37 Coupe. Manual — part 1099
SE-64
< COMPONENT DIAGNOSIS >
SLIDING SENSOR
SLIDING SENSOR
DRIVER SIDE
DRIVER SIDE : Description
INFOID:0000000001877723
• The sliding sensor is installed on the seat slide cushion frame.
• The pulse signal is transmitted to the driver seat control unit when sliding is operated.
• The driver seat control unit counts the pulse and calculates the sliding amount of the seat.
DRIVER SIDE : Component Function Check
INFOID:0000000001877724
1.
CHECK FUNCTION
1.
Select “SLIDE PULSE” in “Data Monitor” mode with CONSULT-III.
2.
Check sliding 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 daiagnosis procedure. Refer to
SE-64, "DRIVER SIDE : Diagnosis Procedure"
DRIVER SIDE : Diagnosis Procedure
INFOID:0000000001877725
1.
CHECK SLIDING 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 6.
NO
>> GO TO 2.
2.
CHECK SLIDING SENSOR CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect driver seat control unit connector and sliding sensor connector.
3.
Check continuity between driver seat control unit harness connector and sliding sensor harness connec-
tor.
Monitor item
Condition
Valve
SLIDE PULSE
Seat sliding
Operate (forward)
Change (increase)
*1
Operate (backward)
Change (decrease)*
1
Release
No change
*1
Terminals
Condition
Voltage signal
(+)
(–)
Driver seat control unit
connector
Terminal
B503
24
Ground
Seat sliding
Operate
Other than
above
0 or 5
JMJIA0119ZZ
SLIDING SENSOR
SE-65
< COMPONENT DIAGNOSIS >
C
D
E
F
G
H
I
K
L
M
A
B
SE
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 SLIDING SENSOR POWER SUPPLY
1.
Connect driver seat control unit connector.
2.
Turn ignition switch ON.
3.
Check voltage between sliding sensor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> GO TO 4.
4.
CHECK SLIDING 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 sliding sensor harness connec-
tor.
4.
Check continuity between driver seat control unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Repair or replace harness.
5.
CHECK SLIDING 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 sliding sensor harness connec-
tor.
Is the inspection result normal?
YES
>> GO TO 6.
Driver seat control unit
connector
Terminal
Sliding sensor
connector
Terminal
Continuity
B503
24
B526
24
Existed
Driver seat control unit
connector
Terminal
Ground
Continuity
B503
24
Not existed
Terminals
Voltage (V)
(Approx.)
(+)
(–)
Sliding sensor connector
Terminal
B526
16
Ground
5
Driver seat
control unit connector
Terminal
Sliding sensor
connector
Terminal
Continuity
B503
16
B526
16
Existed
Driver seat control unit
connector
Terminal
Ground
Continuity
B503
16
Not existed
Driver seat control unit
connector
Terminal
Sliding sensor
connector
Terminal
Continuity
B503
31
B526
31
Existed
SE-66
< COMPONENT DIAGNOSIS >
SLIDING SENSOR
NO
>> Repair or replace harness.
6.
CHECK INTERMITTENT INCIDENT
GI-38, "Intermittent Incident"
Is the inspection result normal?
YES
>> Replace driver seat control unit. Refer to
SE-164, "Removal and Installation"
NO
>> Repair or replace the malfunctioning part.
PASSENGER SIDE
PASSENGER SIDE : Description
INFOID:0000000001879586
• The sliding sensor is installed on the seat slide cushion frame.
• The pulse signal is transmitted to the passenger seat control unit when sliding is operated.
• The passenger seat control unit counts the pulse and calculates the sliding amount of the seat.
PASSENGER SIDE : Diagnosis Procedure
INFOID:0000000001879588
1.
CHECK SLIDING SENSOR SIGNAL
1.
Turn ignition switch ON.
2.
Read voltage signal between passenger seat control unit harness connector and ground with oscillo-
scope.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> GO TO 2.
2.
CHECK SLIDING SENSOR CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect passenger seat control unit connector and sliding sensor connector.
3.
Check continuity between passenger seat control unit harness connector and sliding sensor harness con-
nector.
4.
Check continuity between passenger seat control unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
Terminals
Condition
Voltage signal
(+)
(–)
Passenger seat control
unit connector
Terminal
B552
24
Ground
Seat sliding
Operate
Other than
above
0 or 5
JMJIA0119ZZ
Passenger seat control unit
connector
Terminal
Sliding sensor
connector
Terminal
Continuity
B552
24
B568
24
Existed
Passenger seat control unit
connector
Terminal
Ground
Continuity
B552
24
Not existed
SLIDING SENSOR
SE-67
< COMPONENT DIAGNOSIS >
C
D
E
F
G
H
I
K
L
M
A
B
SE
N
O
P
NO
>> Repair or replace harness.
3.
CHECK SLIDING SENSOR POWER SUPPLY
1.
Connect passenger seat control unit connector.
2.
Turn ignition switch ON.
3.
Check voltage between sliding sensor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> GO TO 4.
4.
CHECK SLIDING SENSOR POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect passenger seat control unit connector.
3.
Check continuity between passenger seat control unit harness connector and sliding sensor harness con-
nector.
4.
Check continuity between passenger seat control unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Repair or replace harness.
5.
CHECK SLIDING SENSOR GROUND
1.
Turn ignition switch OFF.
2.
Disconnect passenger seat control unit connector.
3.
Check continuity between passenger seat control unit harness connector and sliding sensor harness con-
nector.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Repair or replace harness.
6.
CHECK INTERMITTENT INCIDENT
GI-38, "Intermittent Incident"
.
Is the inspection result normal?
YES
>> Replace passenger seat control unit. Refer to
SE-165, "Removal and Installation"
.
NO
>> Repair or replace the malfunctioning part.
Terminals
Voltage (V)
(Approx.)
(+)
(–)
Sliding sensor connector
Terminal
B568
16
Ground
5
Passenger seat
control unit connector
Terminal
Sliding sensor
connector
Terminal
Continuity
B552
16
B568
16
Existed
Passenger seat control unit
connector
Terminal
Ground
Continuity
B552
16
Not existed
Passenger seat control unit
connector
Terminal
Sliding sensor
connector
Terminal
Continuity
B552
31
B568
31
Existed
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