Infiniti G37 Coupe. Manual — part 1104
SE-84
< COMPONENT DIAGNOSIS >
SLIDING RELAY
1.
Turn ignition switch OFF.
2.
Remove sliding relay (forward).
3.
Check the continuity between sliding relay (forward) terminals under the following conditions.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace sliding relay (forward)
BACKWARD
BACKWARD : Diagnosis Procedure
INFOID:0000000001827810
1.
CHECK DRIVER SEAT CONTROL UNIT/PASSENGER SEAT CONTROL UNIT INPUT SIGNAL
1.
Turn ignition switch ON.
2.
Check continuity between driver seat control unit/passenger seat control unit harness connector and
ground.
Is the inspection result normal?
YES
>> Sliding relay (backward) is OK.
NO
>> GO TO 2.
2.
CHECK SLIDING RELAY (BACKWARD) POWER SUPPLY
1.
Turn ignition switch OFF.
2.
Disconnect sliding relay (backward).
3.
Check voltage between sliding relay (backward) harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> GO TO 3.
3.
CHECK SLIDING RELAY (BACKWARD) POWER SUPPLY CIRCUIT
1.
Disconnect power seat switch connector.
2.
Check continuity between power seat switch harness connector and sliding relay (backward) harness
connector.
Terminals
Condition
Continuity
26 and 32
12V direct current supply between termi-
nals 22 and 48
Existed
No current supply
Not existed
Driver seat control unit/
Passenger seat control unit
Ground
Condition
Voltage (V)
(Approx.)
Connector
Terminal
Driver seat control
unit: B503
(driver side)
11
Ground
Sliding switch
(driver side)
Operate (back-
ward)
Battery voltage
Release
0
Passenger seat
control unit: B553
(passenger side)
Sliding switch
(passenger side)
Operate (back-
ward)
Battery voltage
Release
0
Sliding relay (backward)
Ground
Condition
Voltage (V)
(Approx.)
Connector
Terminal
B516
(driver side)
23
Ground
Sliding switch
(driver side)
Operate (back-
ward)
Battery
Release
0
B560
(passenger side)
Sliding switch
(passenger side)
Operate (back-
ward)
Battery
Release
0
SLIDING RELAY
SE-85
< COMPONENT DIAGNOSIS >
C
D
E
F
G
H
I
K
L
M
A
B
SE
N
O
P
3.
Check continuity between power seat switch harness connector and ground.
Is the inspection result normal?
YES
>> Check intermittent incident. Refer to
GI-38, "Intermittent Incident"
.
NO
>> Repair or replace harness.
4.
CHECK SLIDING RELAY (BACKWARD)
SE-86, "BACKWARD : Component Inspection (Sliding Relay)"
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Replace sliding relay.
5.
CHECK SLIDING RELAY (BACKWARD) CIRCUIT 1
1.
Disconnect driver seat control unit/passenger seat control unit connector.
2.
Check continuity between sliding relay (backward) harness connector and driver seat control unit/passen-
ger seat control unit harness connector.
3.
Check continuity between sliding relay (backward) harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Repair or replace harness or connector.
6.
CHECK SLIDING RELAY (BACKWARD) CIRCUIT 2
1.
Check continuity between sliding relay (backward) harness connector and driver seat control unit/passen-
ger seat control unit harness connector.
Power seat switch
Sliding relay (backward)
Continuity
Connector
Terminal
Connector
Terminal
B511
(driver side)
23
B516
(driver side)
23
Existed
B554
(passenger side)
B560
(passenger side)
Existed
Power seat switch
Ground
Continuity
Connector
Terminal
B511
(driver side)
23
Ground
Not existed
B554
(passenger side)
Not existed
Sliding relay (backward)
Driver seat control unit/
Passenger seat control unit
Continuity
Connector
Terminal
Connector
Terminal
B516
(driver side)
48
Driver seat control unit:
B504
(driver side)
48
Existed
B560
(passenger side)
Passenger seat control
unit: B553
(passenger side)
Existed
Sliding relay (backward)
Ground
Continuity
Connector
Terminal
B516
(driver side)
48
Ground
Not existed
B560
(passenger side)
Not existed
SE-86
< COMPONENT DIAGNOSIS >
SLIDING RELAY
2.
Check continuity between sliding relay (backward) harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> Repair or replace harness.
7.
CHECK SLIDING RELAY (BACKWARD) GROUND CIRCUIT
Check continuity between sliding relay (backward) harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 8.
NO
>> Repair or replace harness or connector.
8.
CHECK DRIVER SEAT CONTROL UNIT/PASSENGER SEAT CONTROL UNIT OUTPUT
1.
Connect driver seat control unit/passenger seat control unit connector.
2.
Check voltage between driver seat control unit/passenger seat control unit harness connector and
ground.
Is the inspection result normal?
YES
>> Check intermittent incident. Refer to
GI-38, "Intermittent Incident"
.
NO
>> Replace driver seat control unit/passenger seat control unit.
BACKWARD : Component Inspection (Sliding Relay)
INFOID:0000000001827811
1.
CHECK SLIDING RELAY
Sliding relay (backward)
Driver seat control unit/
Passenger seat control unit
Continuity
Connector
Terminal
Connector
Terminal
B516
(driver side)
11
Driver seat control unit:
B504
(driver side)
11
Existed
B560
(passenger side)
Passenger seat control
unit: B553
(passenger side)
Existed
Sliding relay (backward)
Ground
Continuity
Connector
Terminal
B516
(driver side)
11
Ground
Not existed
B560
(passenger side)
Not existed
Sliding relay (backward)
Ground
Continuity
Connector
Terminal
B516
(driver side)
32
Ground
Existed
B560
(passenger side)
Existed
Driver seat control unit/
Passenger seat control unit
Ground
Voltage (V)
(Approx.)
Connector
Terminal
Driver seat control unit: B503
(driver side)
11
Ground
Battery voltage
Passenger seat control unit:
B553
(passenger side)
Battery voltage
SLIDING RELAY
SE-87
< COMPONENT DIAGNOSIS >
C
D
E
F
G
H
I
K
L
M
A
B
SE
N
O
P
1.
Turn ignition switch OFF.
2.
Remove sliding relay (backward).
3.
Check the continuity between sliding relay (backward) terminals under the following conditions.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace sliding relay (backward)
Terminals
Condition
Continuity
11 and 32
12 V direct current supply between termi-
nals 23 and 48
Existed
No current supply
Not existed
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