Nissan Quest E52. Instruction — part 21
RECLINING SENSOR
ADP-77
< DTC/CIRCUIT DIAGNOSIS >
C
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ADP
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RECLINING SENSOR
Component Function Check
INFOID:0000000009649668
1.
CHECK FUNCTION
1.
Select “RECLN PULSE” in “Data monitor” mode with CONSULT.
2.
Check reclining sensor signal under the following conditions.
*
: The value at the seat position attained when the battery is connected is considered to be 32768.
Is the indication normal?
YES
>> INSPECTION END
NO
>> Refer to
.
Diagnosis Procedure
INFOID:0000000009649669
1.
CHECK RECLINING SENSOR SIGNAL
1.
Turn ignition switch ON.
2.
Check signal between driver seat control unit harness connector and ground using an oscilloscope.
Is the inspection result normal?
YES
>> Replace driver seat control unit. Refer to
ADP-111, "Removal and Installation"
NO
>> GO TO 2.
2.
CHECK RECLINING SENSOR CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect driver seat control unit connector and reclining motor connector.
3.
Check continuity between driver seat control unit harness connector and reclining motor harness connec-
tor.
4.
Check continuity between driver seat control unit harness connector and ground.
Monitor item
Condition
Value
RECLN PULSE
Seat reclining
Operate (forward)
Change (increase)
*
Operate (backward)
Change (decrease)
*
Release
No change
*
(+)
(-)
Condition
Signal (V)
(Reference value)
Driver seat control unit
Connector
Terminals
B552
4
Ground
Seat reclining
Operate
Other than the
above
0 – 1 or 4 – 6
JMJIA0119ZZ
Driver seat control unit
Reclining motor
Continuity
Connector
Terminal
Connector
Terminal
B552
4
B554
4
Existed
ADP-78
< DTC/CIRCUIT DIAGNOSIS >
RECLINING SENSOR
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace harness or connector.
3.
CHECK RECLINING SENSOR POWER SUPPLY
1.
Connect driver seat control unit connector.
2.
Turn ignition switch ON.
3.
Check voltage between reclining motor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> GO TO 4.
4.
CHECK RECLINING SENSOR POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect driver seat control unit connector.
3.
Check continuity between driver seat control unit harness connector and reclining motor harness connec-
tor.
4.
Check continuity between driver seat control unit harness connector and ground.
Is the inspection result normal?
YES
>> Replace driver seat control unit. Refer to
ADP-111, "Removal and Installation"
NO
>> Repair or replace harness or connector.
5.
CHECK RECLINING SENSOR GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Check continuity between reclining motor harness connector and ground.
Is the inspection result normal?
YES
>> Replace reclining motor.
NO
>> Repair or replace harness or connector.
Driver seat control unit
Ground
Continuity
Connector
Terminal
B552
4
Not existed
(+)
(-)
Voltage (V)
Reclining motor
Connector
Terminals
B554
12
Ground
9 – 16
Driver seat control unit
Reclining motor
Continuity
Connector
Terminal
Connector
Terminal
B552
12
B554
12
Existed
Driver seat control unit
Ground
Continuity
Connector
Terminal
B552
12
Not existed
Reclining motor
Ground
Continuity
Connector
Terminal
B554
43
Existed
LIFTING SENSOR (FRONT)
ADP-79
< DTC/CIRCUIT DIAGNOSIS >
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ADP
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LIFTING SENSOR (FRONT)
Component Function Check
INFOID:0000000009649670
1.
CHECK FUNCTION
1.
Select “LIFT FR PULSE” in “Data monitor” mode with CONSULT.
2.
Check the lifting sensor (front) signal under the following conditions.
*
: The value at the seat position attained when the battery is connected is considered to be 32768.
Is the indication normal?
YES
>> INSPECTION END
NO
>> Refer to
.
Diagnosis Procedure
INFOID:0000000009649671
1.
CHECK LIFTING SENSOR (FRONT) SIGNAL
1.
Turn ignition switch ON.
2.
Check signal between driver seat control unit harness connector and ground using an oscilloscope.
Is the inspection result normal?
YES
>> Replace driver seat control unit. Refer to
ADP-111, "Removal and Installation"
NO
>> GO TO 2.
2.
CHECK LIFTING SENSOR (FRONT) CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect driver seat control unit connector and lifting motor (front) connector.
3.
Check continuity between driver seat control unit harness connector and lifting motor (front) harness con-
nector.
4.
Check continuity between driver seat control unit harness connector and ground.
Monitor item
Condition
Value
LIFT FR PULSE
Seat lifting (front)
Operate (up)
Change (increase)
*
Operate (down)
Change (decrease)
*
Release
No change
*
(+)
(-)
Condition
Signal (V)
(Reference value)
Driver seat control unit
Connector
Terminals
B552
19
Ground
Seat Lifting
(front)
Operate
Other than the
above
0 – 1 or 4 – 6
JMJIA0119ZZ
Driver seat control unit
Lifting motor (front)
Continuity
Connector
Terminal
Connector
Terminal
B552
19
B555
19
Existed
ADP-80
< DTC/CIRCUIT DIAGNOSIS >
LIFTING SENSOR (FRONT)
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace harness or connector.
3.
CHECK LIFTING SENSOR (FRONT) POWER SUPPLY
1.
Connect driver seat control unit connector.
2.
Turn ignition switch ON.
3.
Check voltage between lifting motor (front) harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> GO TO 4.
4.
CHECK LIFTING SENSOR (FRONT) POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect driver seat control unit connector.
3.
Check continuity between driver seat control unit harness connector and lifting motor (front) harness con-
nector.
4.
Check continuity between driver seat control unit harness connector and ground.
Is the inspection result normal?
YES
>> Replace driver seat control unit. Refer to
ADP-111, "Removal and Installation"
NO
>> Repair or replace harness or connector.
5.
CHECK LIFTING SENSOR (FRONT) GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Check continuity between lifting motor (front) harness connector and ground.
Is the inspection result normal?
YES
>> Replace lifting motor (front).
NO
>> Repair or replace harness or connector.
Driver seat control unit
Ground
Continuity
Connector
Terminal
B552
19
Not existed
(+)
(-)
Voltage (V)
Lifting motor (front)
Connector
Terminals
B555
12
Ground
9 – 16
Driver seat control unit
Lifting motor (front)
Continuity
Connector
Terminal
Connector
Terminal
B552
12
B555
12
Existed
Driver seat control unit
Ground
Continuity
Connector
Terminal
B552
12
Not existed
Lifting motor (front)
Ground
Continuity
Connector
Terminal
B555
43
Existed
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