Infiniti G37 Coupe. Manual — part 1095
SE-48
< COMPONENT DIAGNOSIS >
SEAT BELT BUCKLE SWITCH
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 passenger seat control unit connector and seat belt buckle switch connector.
2.
Check continuity between passenger seat control unit harness connector and seat belt buckle switch har-
ness connector.
3.
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 SEAT BELT BUCKLE SWITCH GROUND CIRCUIT
Check continuity between seat belt buckle switch harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace harness.
4.
CHECK PASSENGER SEAT CONTROL UNIT OUTPUT
1.
Connect passenger seat control unit connector.
2.
Check voltage between passenger seat control unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Replace passenger seat control unit. Refer to
SE-165, "Removal and Installation"
.
5.
CHECK SEAT BELT BUCKLE SWITCH
SE-49, "PASSENGER SIDE : 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.)
Passenger seat control unit
Ground
Condition
Voltage (V)
(Approx.)
Connector
Terminal
B552
5
Ground
Passenger side seat belt is fastened,
and power walk-in switch is pressed.
5
Released
0
Passenger seat control unit
Seat belt buckle switch
Continuity
Connector
Terminal
Connector
Terminal
B552
5
B213
1
Existed
Passenger seat control unit
Ground
Continuity
Connector
Terminal
B552
5
Ground
Not existed
Seat belt buckle switch
Ground
Continuity
Connector
Terminal
B213
2
Ground
Existed
Passenger seat control unit
Ground
Voltage (V)
(Approx.)
Connector
Terminal
B552
5
Ground
5
SEAT BELT BUCKLE SWITCH
SE-49
< COMPONENT DIAGNOSIS >
C
D
E
F
G
H
I
K
L
M
A
B
SE
N
O
P
PASSENGER SIDE : Component Inspection
INFOID:0000000001770922
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
Condition
Continuity
Terminal
1
2
Passenger side
seat belt
Fastened
Not existed
Released
Existed
SE-50
< COMPONENT DIAGNOSIS >
SLIDING LIMIT SWITCH
SLIDING LIMIT SWITCH
DRIVER SIDE
DRIVER SIDE : Description
INFOID:0000000001766506
Sliding limit switch is installed on seat cushion frame. Sliding limit switch detects condition of seat sliding.
DRIVER SIDE : Component Function Check
INFOID:0000000001766507
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
SE-50, "DRIVER SIDE : Diagnosis Procedure"
.
DRIVER SIDE : Diagnosis Procedure
INFOID:0000000001766508
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
Sliding position is front edge and power
walk in switch is pressed.
5
Other than above
0
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
SLIDING LIMIT SWITCH
SE-51
< COMPONENT DIAGNOSIS >
C
D
E
F
G
H
I
K
L
M
A
B
SE
N
O
P
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 SLIDING LIMIT SWITCH
SE-51, "DRIVER SIDE : Component Inspection"
.
Is the inspection result normal?
YES
>> Check intermittent incident. Refer to
GI-38, "Intermittent Incident"
NO
>> Replace sliding limit switch. (Built in seat cushion frame.)
DRIVER SIDE : Component Inspection
INFOID:0000000001766509
1.
CHECK SLIDING LIMIT SWITCH
1.
Turn ignition switch OFF.
2.
Disconnect sliding limit switch connector.
3.
Check continuity between sliding limit switch terminals.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace sliding limit switch. (Built in seat cushion frame.)
PASSENGER SIDE
PASSENGER SIDE : Description
INFOID:0000000001831219
Sliding limit switch is installed on seat cushion frame. Sliding limit switch detects condition of seat sliding.
PASSENGER SIDE : Diagnosis Procedure
INFOID:0000000001770943
1.
CHECK SLIDING LIMIT SWITCH SIGNAL
1.
Turn ignition switch OFF.
2.
Check voltage between passenger seat control unit harness connector and ground.
Sliding limit switch
Ground
Continuity
Connector
Terminal
B514
32
Ground
Existed
Driver seat control unit
Ground
Voltage (V)
(Approx.)
Connector
Terminal
B503
4
Ground
5
Sliding limit switch
Condition
Continuity
Terminal
4
32
Seat sliding
Front edge
Not existed
Other than above
Existed
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