Infiniti QX56 (Z62). Manual — part 26
TILT SENSOR
ADP-97
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
K
L
M
A
B
ADP
N
O
P
TILT SENSOR
Component Function Check
INFOID:0000000006248394
1.
CHECK FUNCTION
1.
Select “TILT PULSE” in “Data monitor” mode with CONSULT-III.
2.
Check tilt sensor signal under the following conditions.
*1
: 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
>> Perform diagnosis procedure. Refer to
Diagnosis Procedure
INFOID:0000000006248395
1.
CHECK TILT SENSOR SIGNAL
1.
Turn ignition switch ON.
2.
Check voltage signal between driver seat control unit connector and ground with oscilloscope.
Is the inspection result normal?
YES
>> Replace driver seat control unit.
NO
>> GO TO 2.
2.
CHECK TILT SENSOR CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect driver seat control unit connector and tilt motor connector.
3.
Check continuity between driver seat control unit harness connector and tilt motor harness connector.
4.
Check continuity between driver seat control unit harness connector and ground.
Monitor item
Condition
Value
TILT PULSE
Steering column
Operate (up)
Change (increase)
*1
Operate (down)
Change (decrease)
*1
Release
No change
*1
(+)
(-)
Condition
Voltage (V)
(Approx.)
Driver seat control unit
Connector
Terminals
B452
21
Ground
Steering col-
umn
Operate
Other than the
above
0 or 5
JMJIA0119ZZ
Driver seat control unit
Tilt motor
Continuity
Connector
Terminal
Connector
Terminal
B452
21
M116
5
Existed
Driver seat control unit
Ground
Continuity
Connector
Terminal
B452
21
Not existed
ADP-98
< DTC/CIRCUIT DIAGNOSIS >
TILT SENSOR
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace harness or connector.
3.
CHECK TILT SENSOR POWER SUPPLY
1.
Turn ignition switch ON.
2.
Check voltage between tilt motor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> GO TO 4.
4.
CHECK TILT SENSOR POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect automatic drive positioner control unit connector.
3.
Check continuity between automatic drive positioner control unit harness connector and tilt motor harness
connector.
4.
Check continuity between automatic drive positioner control unit harness connector and ground.
Is the inspection result normal?
YES
>> Replace automatic drive positioner control unit.
NO
>> Repair or replace harness or connector.
5.
CHECK TILT SENSOR GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect automatic drive positioner control unit connector.
3.
Check continuity between automatic drive positioner control unit harness connector and tilt motor harness
connector.
4.
Check continuity between automatic drive positioner control unit harness connector and ground.
Is the inspection result normal?
YES
>> Replace tilt motor.
NO
>> Repair or replace harness or connector.
(+)
(-)
Voltage (V)
(Approx.)
Tilt motor
Connector
Terminals
M116
4
Ground
12
Automatic drive positioner control unit
Tilt motor
Continuity
Connector
Terminal
Connector
Terminal
M104
27
M116
4
Existed
Automatic drive positioner control unit
Ground
Continuity
Connector
Terminal
M104
27
Not existed
Automatic drive positioner control unit
Tilt motor
Continuity
Connector
Terminal
Connector
Terminal
M75
20
M116
6
Existed
Automatic drive positioner control unit
Ground
Continuity
Connector
Terminal
M75
20
Not existed
TELESCOPIC SENSOR
ADP-99
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
K
L
M
A
B
ADP
N
O
P
TELESCOPIC SENSOR
Component Function Check
INFOID:0000000006248396
1.
CHECK FUNCTION
1.
Select “TELESCO PULSE” in “Data monitor” mode with CONSULT-III.
2.
Check telescopic sensor signal under the following conditions.
*1
: 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
>> Perform diagnosis procedure. Refer to
Diagnosis Procedure
INFOID:0000000006248397
1.
CHECK TELESCOPIC SENSOR SIGNAL
1.
Turn ignition switch ON.
2.
Check voltage signal between driver seat control unit connector and ground with oscilloscope.
Is the inspection result normal?
YES
>> Replace driver seat control unit.
NO
>> GO TO 2.
2.
CHECK TELESCOPIC SENSOR CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect driver seat control unit connector and telescopic motor connector.
3.
Check continuity between driver seat control unit harness connector and telescopic motor harness con-
nector.
4.
Check continuity between driver seat control unit harness connector and ground.
Monitor item
Condition
Value
TELESCO PULSE
Steering column
Operate (forward)
Change (increase)
*1
Operate (backward)
Change (decrease)
*1
Release
No change
*1
(+)
(-)
Condition
Voltage (V)
(Approx.)
Driver seat control unit
Connector
Terminals
B452
5
Ground
Steering col-
umn
Operate
Other than the
above
0 or 5
JMJIA0119ZZ
Driver seat control unit
Telescopic motor
Continuity
Connector
Terminal
Connector
Terminal
B452
5
M117
5
Existed
ADP-100
< DTC/CIRCUIT DIAGNOSIS >
TELESCOPIC SENSOR
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace harness or connector.
3.
CHECK TELESCOPIC SENSOR POWER SUPPLY
1.
Turn ignition switch ON.
2.
Check voltage between telescopic motor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> GO TO 4.
4.
CHECK TELESCOPIC SENSOR POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect automatic drive positioner control unit connector.
3.
Check continuity between automatic drive positioner control unit harness connector and telescopic motor
harness connector.
4.
Check continuity between automatic drive positioner control unit harness connector and ground.
Is the inspection result normal?
YES
>> Replace automatic drive positioner control unit.
NO
>> Repair or replace harness or connector.
5.
CHECK TELESCOPIC SENSOR GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect automatic drive positioner control unit connector.
3.
Check continuity between automatic drive positioner control unit harness connector and telescopic motor
harness connector.
4.
Check continuity between automatic drive positioner control unit harness connector and ground.
Is the inspection result normal?
Driver seat control unit
Ground
Continuity
Connector
Terminal
B452
5
Not existed
(+)
(-)
Voltage (V)
(Approx.)
Telescopic motor
Connector
Terminals
M117
4
Ground
12
Automatic drive positioner control unit
Telescopic motor
Continuity
Connector
Terminal
Connector
Terminal
M104
27
M117
4
Existed
Automatic drive positioner control unit
Ground
Continuity
Connector
Terminal
M104
27
Not existed
Automatic drive positioner control unit
Telescopic motor
Continuity
Connector
Terminal
Connector
Terminal
M75
20
M117
6
Existed
Automatic drive positioner control unit
Ground
Continuity
Connector
Terminal
M75
20
Not existed
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