Infiniti G37 Coupe. Manual — part 20
ADP-74
< COMPONENT DIAGNOSIS >
FORWARD SWITCH
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace harness.
4.
CHECK DRIVER SEAT CONTROL UNIT OUTPUT
1.
Connect the 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
ADP-236, "Removal and Installation"
5.
CHECK FORWARD SWITCH
ADP-74, "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.)
Component Inspection
INFOID:0000000001838032
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.)
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
SEAT BELT BUCKLE SWITCH
ADP-75
< COMPONENT DIAGNOSIS >
C
D
E
F
G
H
I
K
L
M
A
B
ADP
N
O
P
SEAT BELT BUCKLE SWITCH
Description
INFOID:0000000001838036
Seat belt buckle switch is installed in seat belt buckle. Seat belt buckle switch detects condition of seat belt.
Component Function Check
INFOID:0000000001838037
1.
CHECK FUNCTION
1.
Select “SEAT BELT 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
Diagnosis Procedure
INFOID:0000000001838038
1.
CHECK SEAT BELT BUCKLE 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 SEAT BELT BUCKLE SWITCH CIRCUIT
1.
Disconnect driver seat control unit connector and seat belt buckle switch connector.
2.
Check continuity between driver seat control unit harness connector and seat belt buckle switch harness
connector.
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.
3.
CHECK SEAT BELT BUCKLE SWITCH GROUND CIRCUIT
Check continuity between seat belt buckle switch harness connector and ground.
Test item
Condition
Status
SEAT BELT SW
Driver side seat belt
Fastened
ON
Released
OFF
Driver seat control unit
Ground
Condition
Voltage (V)
(Approx.)
Connector
Terminal
B503
5
Ground
Driver side
seat belt
Fastened
0
Released
5
Driver seat control unit
Seat belt buckle switch
Continuity
Connector
Terminal
Connector
Terminal
B503
5
B13
1
Existed
Driver seat control unit
Ground
Continuity
Connector
Terminal
B503
5
Ground
Not existed
ADP-76
< COMPONENT DIAGNOSIS >
SEAT BELT BUCKLE SWITCH
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace harness.
4.
CHECK DRIVER SEAT CONTROL UNIT OUTPUT
1.
Connect the 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
ADP-236, "Removal and Installation"
5.
CHECK SEAT BELT BUCKLE SWITCH
ADP-76, "Component Inspection"
.
Is the inspection result normal?
YES
>> Check intermittent incident. Refer to
GI-38, "Intermittent Incident"
.
NO
>> Replace seat belt buckle switch. (Built in seat belt buckle.)
Component Inspection
INFOID:0000000001838039
1.
CHECK SEAT BELT BUCKLE SWITCH
1.
Turn ignition switch OFF.
2.
Disconnect seat belt buckle switch connector.
3.
Check continuity between seat belt buckle switch terminals.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace seat belt buckle switch. (Built in seat belt buckle.)
Seat belt buckle switch
Ground
Continuity
Connector
Terminal
B13
2
Ground
Existed
Driver seat control unit
Ground
Voltage (V)
(Approx.)
Connector
Terminal
B503
5
Ground
5
Seat belt buckle switch
Condition
Continuity
Terminal
1
2
Driver side seat
belt
Fastened
Not existed
Released
Existed
SLIDING LIMIT SWITCH
ADP-77
< COMPONENT DIAGNOSIS >
C
D
E
F
G
H
I
K
L
M
A
B
ADP
N
O
P
SLIDING LIMIT SWITCH
Description
INFOID:0000000001838043
Sliding limit switch is installed on seat cushion frame. Sliding limit switch detects condition of seat sliding.
Component Function Check
INFOID:0000000001838044
1.
CHECK FUNCTION
1.
Select “FWD LIMIT SW” in “Data Monitor” mode with CONSULT-III.
2.
Check the sliding limit switch signal under the following condition.
Is the indication normal?
YES
>> INSPECTION END
NO
>> Go to
.
Diagnosis Procedure
INFOID:0000000001838045
1.
CHECK SLIDING LIMIT 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 SLIDING LIMIT SWITCH CIRCUIT
1.
Disconnect driver seat control unit connector and sliding limit switch connector.
2.
Check continuity between driver seat control unit harness connector and sliding limit switch harness con-
nector.
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.
3.
CHECK SLIDING LIMIT SWITCH GROUND CIRCUIT
Check continuity between sliding limit switch harness connector and ground.
Test item
Condition
Status
FWD LIMIT SW
Seat sliding
Front edge
ON
Other than above
OFF
Driver seat control unit
Ground
Condition
Voltage (V)
(Approx.)
Connector
Terminal
B503
4
Ground
Seat sliding
Front edge
0
Other than
above
5
Driver seat control unit
Sliding limit switch
Continuity
Connector
Terminal
Connector
Terminal
B503
4
B514
4
Existed
Driver seat control unit
Ground
Continuity
Connector
Terminal
B503
4
Ground
Not existed
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