Infiniti EX35. Manual — part 1252
POWER SUPPLY AND GROUND CIRCUIT
SE-15
< COMPONENT DIAGNOSIS >
C
D
E
F
G
H
I
K
L
M
A
B
SE
N
O
P
COMPONENT DIAGNOSIS
POWER SUPPLY AND GROUND CIRCUIT
REAR SEATBACK POWER RETURN CONTROL UNIT
REAR SEATBACK POWER RETURN CONTROL UNIT : Diagnosis Procedure
INFOID:0000000003642158
1.
CHECK FUSE
Check that the following fuses are not fusing.
Is the fuse fusing?
YES
>> Replace the blown fuse after repairing the affected circuit if a fuse is blown.
NO
>> GO TO 2.
2.
CHECK POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect rear seatback power return control unit connector.
3.
Check voltage between rear seatback power return control unit harness connector and ground.
Is the measurement value normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector.
3.
CHECK GROUND CIRCUIT
Check continuity between rear seatback power return control unit harness connector and ground.
Does continuity exist?
YES
>> INSPECTION END
NO
>> Repair harness or connector.
Terminal No.
Signal name
Fuse No.
16
Battery power supply
32
17
6
(+)
(
−
)
Voltage
(Approx.)
Rear seatback power return control unit
Connector
Terminal
B226
17
Ground
Battery voltage
B227
16
Rear seatback power return control unit
Ground
Continuity
Connector
Terminal
B226
32
Existed
B227
13
SE-16
< COMPONENT DIAGNOSIS >
POWER RETURN SWITCH
POWER RETURN SWITCH
LH
LH : Description
INFOID:0000000003642160
Switch that performs the return operation.
LH : Component Function Check
INFOID:0000000003642161
1.
CHECK FUNCTION
Check that the rear seatback (LH) rises when pressing and holding the power return switch (LH).
Is the inspection result normal?
YES
>> Power return switch (LH) is OK.
NO
>> Refer to
SE-16, "LH : Diagnosis Procedure"
LH : Diagnosis Procedure
INFOID:0000000003642162
1.
CHECK REAR SEATBACK POWER RETURN CONTROL UNIT INPUT SIGNAL
1.
Turn ignition switch OFF.
2.
Check voltage between rear seatback power return control unit harness connector and ground.
Is the inspection result normal?
YES
>> Power return switch (LH) is OK.
NO
>> GO TO 2.
2.
CHECK FRONT POWER RETURN SWITCH (LH) CIRCUIT
1.
Disconnect rear seatback power return control unit connector and front power return switch (LH) connec-
tor.
2.
Check continuity between rear seatback power return control unit harness connector and power return
switch (LH) harness connector.
3.
Check continuity between rear seatback power return control unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace harness.
3.
CHECK POWER RETURN SWITCH (LH) GROUND CIRCUIT
Check continuity power return switch (LH) harness connector and ground.
(+)
(–)
Condition
Voltage (V)
(Approx.)
Rear seatback power return control unit
Connector
Terminal
B226
28
Ground
Power return switch (LH) is pressed
0
Power return switch (LH) is released
5
Rear seatback power return control unit
Power return switch (LH)
Continuity
Connector
Terminal
Connector
Terminal
B226
28
M174
1
Existed
Rear seatback power return control unit
Ground
Continuity
Connector
Terminal
M226
28
Not existed
POWER RETURN SWITCH
SE-17
< 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 POWER RETURN SWITCH (LH)
Check power return switch (LH).
Refer to
SE-17, "LH : Component Inspection"
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Replace power return switch (LH). Refer to
SE-109, "Removal and Installation"
.
5.
CHECK REAR SEATBACK POWER RETURN CONTROL UNIT OUTPUT SIGNAL
1.
Connect rear seatback power return control unit connector.
2.
Check voltage between rear seatback power return control unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Replace rear seatback power return control unit. Refer to
SE-105, "Removal and Installation"
6.
CHECK INTERMITTENT INCIDENT
GI-38, "Intermittent Incident"
.
>> INSPECTION END
LH : Component Inspection
INFOID:0000000003642163
1.
CHECK FRONT POWER RETURN SWITCH (LH)
1.
Turn ignition OFF.
2.
Disconnect power return switch (LH) connector.
3.
Check power return switch (LH) connector.
Is the inspection result normal?
YES
>> Power return switch (LH) is OK.
NO
>> Replace power return switch (LH). Refer to
SE-109, "Removal and Installation"
.
RH
RH : Description
INFOID:0000000003642164
Switch that performs the return operation.
RH : Component Function Check
INFOID:0000000003642165
1.
CHECK FUNCTION
Check that the rear seatback (RH) rises when pressing and holding the power return switch (RH).
Power return switch (LH)
Ground
Continuity
Connector
Terminal
M174
2
Existed
(+)
(–)
Voltage (V)
(Approx.)
Rear seatback power return control unit
Connector
Terminal
B226
28
Ground
5
Power return switch (LH) connector
Terminal
Condition
Continuity
M174
1
2
Power return switch (LH) is pressed
Existed
Power return switch (LH) is released
Not existed
SE-18
< COMPONENT DIAGNOSIS >
POWER RETURN SWITCH
Is the inspection result normal?
YES
>> Power return switch (RH) is OK.
NO
>> Refer to
SE-18, "RH : Diagnosis Procedure"
.
RH : Diagnosis Procedure
INFOID:0000000003642166
1.
CHECK REAR SEATBACK POWER RETURN CONTROL UNIT INPUT SIGNAL
1.
Turn ignition switch OFF.
2.
Check voltage between rear seatback power return control unit harness connector and ground.
Is the inspection result normal?
YES
>> Power return switch (RH) is OK.
NO
>> GO TO 2.
2.
CHECK POWER RETURN SWITCH (RH) CIRCUIT
1.
Disconnect rear seatback power return control unit connector and power return switch (RH) connector.
2.
Check continuity between rear seatback power return control unit harness connector and power return
switch (RH) harness connector.
3.
Check continuity between rear seatback power return control unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace harness.
3.
CHECK POWER RETURN SWITCH (RH) GROUND CIRCUIT
Check continuity power return switch (RH) harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace harness.
4.
CHECK POWER RETURN SWITCH (RH)
Check power return switch (RH).
Refer to
SE-19, "RH : Component Inspection"
.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Replace power return switch (RH). Refer to
SE-109, "Removal and Installation"
5.
CHECK REAR SEATBACK POWER RETURN CONTROL UNIT OUTPUT SIGNAL
(+)
(–)
Condition
Voltage (V)
(Approx.)
Rear seatback power return control unit
Connector
Terminal
B226
20
Ground
Power return switch (RH) is pressed
0
Power return switch (RH) is released
5
Rear seatback power return control unit
Power return switch (RH)
Continuity
Connector
Terminal
Connector
Terminal
B226
20
M175
1
Existed
Rear seatback power return control unit
Ground
Continuity
Connector
Terminal
B226
20
Not existed
Power return switch (RH)
Ground
Continuity
Connector
Terminal
M175
2
Existed
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