Infiniti G37 Coupe. Manual — part 19
ADP-70
< COMPONENT DIAGNOSIS >
LIFTING SWITCH (FRONT)
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace harness.
3.
CHECK DRIVER SEAT CONTROL UNIT OUTPUT
1.
Connect the driver seat control unit connector.
2.
Turn ignition switch ON.
3.
Check voltage between driver seat control unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Replace driver seat control unit.
4.
CHECK LIFTING SWITCH (FRONT)
ADP-70, "Component Inspection"
.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Replace power seat switch.
5.
CHECK INTERMITTENT INCIDENT
GI-38, "Intermittent Incident"
Is the inspection result normal?
YES
>> Replace driver seat control unit.
NO
>> Repair or replace the malfunctioning part.
Component Inspection
INFOID:0000000001693693
1.
CHECK LIFTING SWITCH (FRONT)
1.
Turn ignition switch OFF.
2.
Disconnect power seat switch (lifting switch front) connector.
3.
Check continuity between power seat switch (lifting switch front) terminals.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace power seat switch.
Driver seat control unit
connector
Terminal
Ground
Continuity
B503
13
Not existed
28
Driver seat control unit
connector
Terminals
Voltage (V)
(Approx.)
(+)
(–)
B503
13
Ground
Battery voltage
28
Terminal
Condition
Continuity
Power seat switch (lifting switch front)
32
13
Lifting switch front (down)
Operate
Existed
Release
Not existed
28
Lifting switch front (up)
Operate
Existed
Release
Not existed
LIFTING SWITCH (REAR)
ADP-71
< COMPONENT DIAGNOSIS >
C
D
E
F
G
H
I
K
L
M
A
B
ADP
N
O
P
LIFTING SWITCH (REAR)
Description
INFOID:0000000001693694
Lifting switch (rear) is equipped to the power seat switch on the seat cushion side surface. The operation sig-
nal is inputted to the driver seat control unit when the lifting switch (rear) is operated.
Component Function Check
INFOID:0000000001693695
1.
CHECK FUNCTION
1.
Select “LIFT RR SW-UP”, “LIFT RR SW-DN” in “Data Monitor” mode with CONSULT-III.
2.
Check lifting switch (rear) signal under the following conditions.
Is the indication normal?
YES
>> INSPECTION END
NO
>> Perform diagnosis procedure. Refer to
Diagnosis Procedure
INFOID:0000000001693696
1.
CHECK LIFTING SWITCH (REAR) SIGNAL
1.
Turn ignition switch ON.
2.
Check voltage between driver seat control unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> GO TO 2.
2.
CHECK LIFTING SWITCH (REAR) CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect driver seat control unit connector and power seat switch connector.
3.
Check continuity between driver seat control unit harness connector and power seat switch harness con-
nector.
4.
Check continuity between driver seat control unit harness connector and ground.
Monitor item
Condition
Status
LIFT RR SW-UP
Lifting switch rear (up)
Operate
ON
Release
OFF
LIFT RR SW-DN
Lifting switch rear (down)
Operate
ON
Release
OFF
Driver seat control unit
connector
Terminals
Condition
Voltage (V)
(Approx.)
(+)
(–)
B503
14
Ground
Lifting switch
(rear)
Operate (down)
0
Release
Battery voltage
29
Operate (up)
0
Release
Battery voltage
Driver seat control unit
connector
Terminal
Power sear switch
connector
Terminal
Continuity
B503
14
B510
14
Existed
29
29
ADP-72
< COMPONENT DIAGNOSIS >
LIFTING SWITCH (REAR)
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace harness.
3.
CHECK DRIVER SEAT CONTROL UNIT OUTPUT
1.
Connect the driver seat control unit connector.
2.
Turn ignition switch ON.
3.
Check voltage between driver seat control unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Replace driver seat control unit.
4.
CHECK LIFTING SWITCH (REAR)
ADP-72, "Component Inspection"
.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Replace power seat switch.
5.
CHECK INTERMITTENT INCIDENT
GI-38, "Intermittent Incident"
Is the inspection result normal?
YES
>> Replace driver seat control unit.
NO
>> Repair or replace the malfunctioning part.
Component Inspection
INFOID:0000000001693697
1.
CHECK LIFTING SWITCH (REAR)
1.
Turn ignition switch OFF.
2.
Disconnect power seat switch (lifting switch rear) connector.
3.
Check continuity between power seat switch (lifting switch rear) terminals.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace power seat switch.
Driver seat control unit
connector
Terminal
Ground
Continuity
B503
14
Not existed
29
Driver seat control unit
connector
Terminals
Voltage (V)
(Approx.)
(+)
(–)
B503
14
Ground
Battery voltage
29
Terminal
Condition
Continuity
Power seat switch (lifting switch rear)
32
14
Lifting switch rear (down)
Operate
Existed
Release
Not existed
29
Lifting switch rear (up)
Operate
Existed
Release
Not existed
FORWARD SWITCH
ADP-73
< COMPONENT DIAGNOSIS >
C
D
E
F
G
H
I
K
L
M
A
B
ADP
N
O
P
FORWARD SWITCH
Description
INFOID:0000000001838029
Forward switch is installed on the seat back frame. Forward switch detects condition of seat back.
Component Function Check
INFOID:0000000001838030
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
>> Perform diagnosis procedure. Refer to
.
Diagnosis Procedure
INFOID:0000000001838031
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.
3.
FORWARD SWITCH GROUND CIRCUIT
Check continuity between forward switch harness connector and ground.
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
Driver side
seat back
Folded up
5
Folded down
0
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
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