Infiniti EX35. Manual — part 1258
![](/vehicles/zatt/rylld/azoru/ont.png)
POWER RETURN MOTOR
SE-39
< COMPONENT DIAGNOSIS >
C
D
E
F
G
H
I
K
L
M
A
B
SE
N
O
P
YES
>> Replace rear seatback power return control unit. Refer to
SE-105, "Removal and Installation"
NO
>> Repair or replace harness.
RH
RH : Description
INFOID:0000000003642201
Operate the rear seatback.
RH : Component Function Check
INFOID:0000000003642202
1.
CHECK FUNCTION
Check that the rear seatback (RH) rises when pressing and holding the power return switch (RH) or rear seat-
back switch (RH) in UP direction.
Is the inspection result normal?
YES
>> Power return motor (RH) is OK.
NO
>> Refer to
SE-39, "RH : Diagnosis Procedure"
.
RH : Diagnosis Procedure
INFOID:0000000003642203
1.
CHECK POWER RETURN MOTOR (RH) INPUT SIGNAL
1.
Turn ignition switch OFF.
2.
Check voltage between power return motor assembly (RH) harness connector and ground.
Is the inspection result normal?
YES
>> Replace power return motor assembly (RH) [reclining device assembly (RH)]. Refer to
NO
>> GO TO 2.
2.
CHECK POWER RETURN MOTOR (RH) CIRCUIT
1.
Disconnect rear seatback power return control unit connector and power return motor assembly (RH) con-
nector.
2.
Check continuity between rear seatback power return control unit harness connector and power return
motor assembly (RH) harness connector.
3.
Check continuity between rear seatback power return control unit harness connector and ground.
Is the inspection result normal?
(+)
(–)
Condition
Voltage (V)
(Approx.)
Power return motor assembly (RH)
Connector
Terminal
B504
20
Ground
During the power return motor (RH) reverse
operation
Battery voltage
Other than the above
0
21
During the power return motor (RH) return op-
eration
Battery voltage
Other than the above
0
Rear seatback power return control unit
Power return motor assembly (RH)
Continuity
Connector
Terminal
Connector
Terminal
B227
7
B504
20
Existed
8
21
Rear seatback power return control unit
Ground
Continuity
Connector
Terminal
B227
7
Not existed
8
SE-40
< COMPONENT DIAGNOSIS >
POWER RETURN MOTOR
YES
>> Replace rear seatback power return control unit. Refer to
SE-105, "Removal and Installation"
NO
>> Repair or replace harness.
![](/vehicles/zatt/rylld/azoru/zyoors.png)
VEHICLE SPEED SIGNAL CIRCUIT
SE-41
< COMPONENT DIAGNOSIS >
C
D
E
F
G
H
I
K
L
M
A
B
SE
N
O
P
VEHICLE SPEED SIGNAL CIRCUIT
Description
INFOID:0000000003642204
Transmits vehicle speed signal to rear seatback power return control unit.
Component Function Check
INFOID:0000000003642205
1.
CHECK FUNCTION
Check that the rear seatback rises when pressing and holding the power return switch or rear seatback switch
in UP direction.
Is the inspection result normal?
YES
>> Vehicle speed signal circuit is OK.
NO
>> Refer to
Diagnosis Procedure
INFOID:0000000003642206
1.
CHECK VEHICLE SPEED OPERATION
1.
Check speed meter operate normally.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Refer to
2.
CHECK VEHICLE SPEED 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
>> GO TO 3.
NO
>> Refer to
3.
CHECK VEHICLE SPEED SIGNAL CIRCUIT
1.
Disconnect rear seatback power return control unit connector and unified meter and A/C amp. connector.
2.
Check continuity between power return control unit harness connector and unified meter and A/C amp.
harness connector.
3.
Check continuity between rear seatback power return control unit harness connector and ground.
(+)
(–)
Condition
Voltage (V)
(Approx.)
Rear seatback power return control unit
Connector
Terminal
B226
24
Ground
When vehicle speed is ap-
prox.40 km/h (25MPH)
NOTE:
Maximum voltage may be 12V due
to specifications (connected units)
SKIA6649J
Rear seatback power return control unit
Unified meter and A/C amp.
Continuity
Connector
Terminal
Connector
Terminal
B226
24
M66
28
Existed
![](/vehicles/zatt/rylld/azoru/herodu.png)
SE-42
< COMPONENT DIAGNOSIS >
VEHICLE SPEED SIGNAL CIRCUIT
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace harness.
4.
CHECK INTERMITTENT INCIDENT
GI-38, "Intermittent Incident"
>> INSPECTION END
Rear seatback power return control unit
Ground
Continuity
Connector
Terminal
B226
24
Not existed
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