Infiniti G37 Coupe. Manual — part 1093
SE-40
< COMPONENT DIAGNOSIS >
SLIDING SWITCH
SLIDING SWITCH
SEATBACK
SEATBACK : Description
INFOID:0000000001848726
Sliding switch is equipped on the seat back. The operation signal inputted to passenger seat control unit when
sliding switch (seat back) is operated.
SEATBACK : Component Function Check
INFOID:0000000001848727
1.
CHECK SLIDING SWITCH (SEAT BACK) FUNCTION
Check seat sliding operation with sliding switch (seat back).
Is the inspection results normal?
YES
>> Power seat switch is OK.
NO
>> Refer to
SE-40, "SEATBACK : Diagnosis Procedure"
SEATBACK : Diagnosis Procedure
INFOID:0000000001848763
1.
CHECK SLIDING SWITCH (SEAT BACK) SIGNAL
1.
Turn ignition switch ON.
2.
Check voltage between passenger seat control unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> GO TO 2.
2.
CHECK SLIDING SWITCH (SEAT BACK) CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect passenger seat control unit connector and sliding switch (seat back) connector.
3.
Check continuity between passenger seat control unit harness connector and sliding switch (seat back)
harness connector.
4.
Check continuity between passenger seat control unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace harness.
3.
CHECK PASSENGER SEAT CONTROL UNIT OUTPUT
1.
Connect passenger seat control unit connector.
Passenger seat control
unit
connector
Terminals
Condition
Voltage (V)
(Approx.)
(+)
(–)
B552
11
Ground
Sliding switch
(seat back)
Operate (backward)
0
Release
Battery voltage
26
Operate (forward)
0
Release
Battery voltage
Passenger seat control unit
connector
Terminal
Sliding switch (seat back)
connector
Terminal
Continuity
B552
11
B561
11
Existed
26
26
Passenger seat control unit
connector
Terminal
Ground
Continuity
B552
11
Not existed
26
SLIDING SWITCH
SE-41
< COMPONENT DIAGNOSIS >
C
D
E
F
G
H
I
K
L
M
A
B
SE
N
O
P
2.
Turn ignition switch ON.
3.
Check voltage between passenger seat control unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Replace passenger seat control unit.
4.
CHECK SLIDING SWITCH (SEAT BACK) GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Check continuity between sliding switch (seat back) harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair or replace harness.
5.
CHECK SLIDING SWITCH (SEAT BACK)
SE-41, "SEATBACK : Component Inspection"
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Replace power seat switch.
6.
CHECK INTERMITTENT INCIDENT
GI-38, "Intermittent Incident"
.
Is the inspection result normal?
YES
>> Replace passenger seat control unit.
NO
>> Repair or replace malfunctioning part.
SEATBACK : Component Inspection
INFOID:0000000001848764
1.
CHECK SLIDING SWITCH
1.
Turn ignition switch OFF.
2.
Disconnect sliding switch (seat back) connector.
3.
Check continuity between sliding switch (seat back) terminals.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace sliding switch (seat back).
Passenger seat control unit
connector
Terminals
Voltage (V)
(Approx.)
(+)
(–)
B552
11
Ground
Battery voltage
26
Sliding switch (seat back)
connector
Terminal
Ground
Continuity
B561
32
Ground
Existed
Terminal
Condition
Continuity
Sliding switch (seat back)
32
11
Sliding switch
Operate
(backward)
Existed
Release
Not existed
26
Sliding switch
Operate
(forward)
Existed
Release
Not existed
SE-42
< COMPONENT DIAGNOSIS >
FORWARD SWITCH
FORWARD SWITCH
DRIVER SIDE
DRIVER SIDE : Description
INFOID:0000000001751582
Forward switch is installed on seat back frame. Forward switch detects condition of seat back.
DRIVER SIDE : Component Function Check
INFOID:0000000001751583
1.
CHECK FUNCTION
1.
Select “FORWARD SW” in “Data Monitor” mode with CONSULT-III.
2.
Check the forward switch signal under the following condition.
Is the indication normal?
YES
>> INSPECTION END
NO
>> Refer to
SE-42, "DRIVER SIDE : Diagnosis Procedure"
.
DRIVER SIDE : Diagnosis Procedure
INFOID:0000000001751584
1.
CHECK FORWARD SWITCH SIGNAL
1.
Turn ignition switch OFF.
2.
Check voltage between driver seat control unit harness connector and ground.
Is the inspection result normal?
YES
>> Check intermittent incident. Refer to
GI-38, "Intermittent Incident"
.
NO
>> GO TO 2.
2.
CHECK FORWARD SWITCH CIRCUIT
1.
Disconnect driver seat control unit connector and forward switch connector.
2.
Check continuity between driver seat control unit harness connector and forward switch harness connec-
tor.
3.
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.
Test item
Condition
Status
FORWARD SW
Driver side seat back
Folded up
ON
Folded down
OFF
Driver seat control unit
Ground
Condition
Voltage (V)
(Approx.)
Connector
Terminal
B504
41
Ground
Seat back is folded down and
power walk-in switch is pressed.
0
Seat back is folded up and power
walk-in switch is pressed.
5
Seat back is folded up and seat
reclining switch is operated.
Battery voltage
Driver seat control unit
Forward switch
Continuity
Connector
Terminal
Connector
Terminal
B504
41
B512
41
Existed
Driver seat control unit
Ground
Continuity
Connector
Terminal
B504
41
Ground
Not existed
FORWARD SWITCH
SE-43
< COMPONENT DIAGNOSIS >
C
D
E
F
G
H
I
K
L
M
A
B
SE
N
O
P
3.
FORWARD SWITCH GROUND CIRCUIT
Check continuity between forward switch harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace harness.
4.
CHECK DRIVER SEAT CONTROL UNIT OUTPUT
1.
Connect driver seat control unit connector.
2.
Check voltage between driver seat control unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Replace driver seat control unit. Refer to
SE-164, "Removal and Installation"
5.
CHECK FORWARD SWITCH
SE-43, "DRIVER SIDE : Component Inspection"
.
Is the inspection result normal?
YES
>> Check intermittent incident. Refer to
GI-38, "Intermittent Incident"
.
NO
>> Replace forward switch. (Built in seat back frame.)
DRIVER SIDE : Component Inspection
INFOID:0000000001751585
1.
CHECK FORWARD SWITCH
1.
Turn ignition switch OFF.
2.
Disconnect forward switch connector.
3.
Check continuity between forward switch terminals.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace forward switch. (Built in seat back frame.)
PASSENGER SIDE
PASSENGER SIDE : Description
INFOID:0000000001831165
Forward switch is installed on seat back frame. Forward switch detects condition of seat back.
PASSENGER SIDE : Diagnosis Procedure
INFOID:0000000001770917
1.
CHECK FORWARD SWITCH SIGNAL
1.
Turn ignition switch OFF.
2.
Check voltage between passenger seat control unit harness connector and ground.
Forward switch
Ground
Continuity
Connector
Terminal
B512
32
Ground
Existed
Driver seat control unit
Ground
Voltage (V)
(Approx.)
Connector
Terminal
B504
41
Ground
5
Forward switch
Condition
Continuity
Terminal
41
32
Driver side seat
back
Folded up
Not existed
Folded down
Existed
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