Nissan Quest E52. Instruction — part 1056
THIRD SEAT FOLD SWITCH
SE-53
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
K
L
M
A
B
SE
N
O
P
8.
CHECK SEATBACK LOCK RELEASE ACTUATOR RELAY (RH)
Check seatback lock release actuator relay (RH).
Refer to
SE-53, "Component Inspection (Seatback Lock Release Actuator Relay)"
.
Is the inspection result normal?
YES
>> GO TO 10.
NO
>> Replace seatback lock release actuator relay (RH).
9.
CHECK THIRD SEAT FOLD SWITCH (RH)
Check third seat fold switch (RH).
Refer to
SE-53, "Component Inspection (Third Seat Fold Switch)"
Is the inspection result normal?
YES
>> GO TO 10.
NO
>> Replace third seat fold switch (RH). Refer to
SE-136, "Removal and Installation"
10.
CHECK INTERMITTENT INCIDENT
GI-42, "Intermittent Incident"
.
>> INSPECTION END
Component Inspection (Third Seat Fold Switch)
INFOID:0000000009652953
1.
CHECK THIRD SEAT FOLD SWITCH
1.
Turn ignition switch OFF.
2.
Remove third seat fold switch. Refer to
SE-136, "Removal and Installation"
3.
Check third seat fold switch terminals under the following conditions.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace third seat fold switch. Refer to
SE-136, "Removal and Installation"
.
Component Inspection (Seatback Lock Release Actuator Relay)
INFOID:0000000009652954
1.
CHECK SEATBACK LOCK ACCTUATOR RELAY
1.
Turn ignition switch OFF.
2.
Remove seatback lock actuator relay.
3.
Check seatback lock actuator relay terminals under the following
conditions.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace seatback lock actuator relay.
Terminal
Condition
Continuity
1
3
Third seat fold switch
FOLD
While being pressed
Existed
Other than the above
Not existed
2
RETURN
While being pressed
Existed
Other than the above
Not existed
Terminal
Condition
Continuity
3
5
12 V direct current supply between ter-
minals 1 and 2.
Existed
Not current supply
Not existed
PBIB0098E
SE-54
< DTC/CIRCUIT DIAGNOSIS >
VEHICLE SPEED SIGNAL CIRCUIT
VEHICLE SPEED SIGNAL CIRCUIT
Diagnosis Procedure
INFOID:0000000009652955
1.
CHECK VEHICLE SPEED SIGNAL
1.
Start engine.
2.
Drive the vehicle at more than 40 km/h (25 MPH).
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
This procedure may be conducted with the drive wheels lifted in the shop or by driving the vehicle.
If a road test is expected to be easier, it is unnecessary to lift the vehicle.
3.
Check signal between seatback power return control unit harness connector and ground with an oscillo-
scope.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> GO TO 2.
2.
CHECK VEHICLE SPEED SIGNAL CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect seatback power return control unit connector and combination meter connector.
3.
Check continuity between seatback power return control unit harness connector and combination meter
harness connector.
4.
Check continuity between seatback power return control unit harness connector and ground.
Is the inspection result normal?
YES
>> Replace combination meter. Refer to
MWI-93, "Removal and Installation"
NO
>> Repair or replace harness.
3.
CHECK INTERMITTENT INCIDENT
GI-42, "Intermittent Incident"
>> INSPECTION END
(+)
(–)
Signal
(Reference value)
Seatback power return control unit
Connector
Terminal
B488
24
Ground
JSNIA0012GB
Seatback power return control unit
Combination meter
Continuity
Connector
Terminal
Connector
Terminal
B488
24
M34
31
Existed
Seatback power return control unit
Ground
Continuity
Connector
Terminal
B488
24
Not existed
SEATBACK ANGLE LIMIT SWITCH
SE-55
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
K
L
M
A
B
SE
N
O
P
SEATBACK ANGLE LIMIT SWITCH
LH
LH : Diagnosis Procedure
INFOID:0000000009652956
1.
CHECK SEATBACK ANGLE LIMIT SWITCH (LH) INPUT SIGNAL
1.
Turn ignition switch OFF.
2.
Disconnect seatback angle limit switch (LH) connector.
3.
Check voltage between seatback angle limit switch (LH) harness connector and ground.
NOTE:
It is not low power consumption mode.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> GO TO 2.
2.
CHECK SEATBACK ANGLE LIMIT SWITCH (LH) CIRCUIT
1.
Disconnect seatback power return control unit connector.
2.
Check continuity between seatback power return control unit harness connector and seatback angle limit
switch (LH) harness connector.
3.
Check continuity between seatback power return control unit harness connector and ground.
Is the inspection result normal?
YES
>> Replace seatback power return control unit. Refer to
SE-139, "Removal and Installation"
NO
>> Repair or replace harness.
3.
CHECK SEATBACK ANGLE LIMIT SWITCH (LH) GROUND CIRCUIT
1.
Disconnect seatback power return control unit connector and sector gear position limit switch connector.
2.
Check continuity between seatback power return control unit harness connector and seatback angle limit
switch (LH) harness connector.
3.
Check continuity between seatback power return control unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 4.
(+)
(–)
Voltage (V)
Seatback angle limit switch (LH)
Connector
Terminal
B500
1
Ground
9 – 16
Seatback power return control unit
Seatback angle limit switch (LH)
Continuity
Connector
Terminal
Connector
Terminal
B488
29
B500
1
Existed
Seatback power return control unit
Ground
Continuity
Connector
Terminal
B488
29
Not existed
Seatback power return control unit
Seatback angle limit switch (LH)
Continuity
Connector
Terminal
Connector
Terminal
B488
31
B500
2
Existed
Seatback power return control unit
Ground
Continuity
Connector
Terminal
B488
31
Not existed
SE-56
< DTC/CIRCUIT DIAGNOSIS >
SEATBACK ANGLE LIMIT SWITCH
NO
>> Repair or replace harness.
4.
CHECK SEATBACK ANGLE LIMIT SWITCH (LH)
Check seatback angle limit switch (LH).
Refer to
.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Replace seatback angle limit switch (LH) [reclining device assembly (LH)]. Refer to
.
5.
CHECK INTERMITTENT INCIDENT
GI-42, "Intermittent Incident"
>> INSPECTION END
RH
RH : Diagnosis Procedure
INFOID:0000000009652957
1.
CHECK SEATBACK ANGLE LIMIT SWITCH (RH) INPUT SIGNAL
1.
Turn ignition switch OFF.
2.
Disconnect seatback angle limit switch (RH) connector.
3.
Check voltage between seatback angle limit switch (RH) harness connector and ground.
NOTE:
It is not low power consumption mode.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> GO TO 2.
2.
CHECK SEATBACK ANGLE LIMIT SWITCH (RH) CIRCUIT
1.
Disconnect seatback power return control unit connector.
2.
Check continuity between seatback power return control unit harness connector and seatback angle limit
switch (RH) harness connector.
3.
Check continuity between seatback power return control unit harness connector and ground.
Is the inspection result normal?
YES
>> Replace seatback power return control unit. Refer to
SE-139, "Removal and Installation"
NO
>> Repair or replace harness.
3.
CHECK SEATBACK ANGLE LIMIT SWITCH (RH) GROUND CIRCUIT
1.
Disconnect seatback power return control unit connector and sector gear position limit switch connector.
2.
Check continuity between seatback power return control unit harness connector and seatback angle limit
switch (RH) harness connector.
(+)
(–)
Voltage (V)
Seatback angle limit switch (RH)
Connector
Terminal
B496
1
Ground
9 – 16
Seatback power return control unit
Seatback angle limit switch (RH)
Continuity
Connector
Terminal
Connector
Terminal
B488
30
B496
1
Existed
Seatback power return control unit
Ground
Continuity
Connector
Terminal
B488
30
Not existed
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