Infiniti M45 (Y34). Manual — part 761
AUTOMATIC DRIVE POSITIONER
SE-65
C
D
E
F
G
H
J
K
L
M
A
B
SE
Seat Reclining Sensor Circuit Inspection
AIS001K3
1.
CHECK RECLINING SENSOR INPUT/OUTPUT SIGNAL
1.
Turn ignition switch OFF.
2.
Check signal between driver seat control unit connector and
body ground, with oscilloscope.
OK or NG
OK
>> System is OK.
NG
>> GO TO 2.
2.
CHECK RECLINING SENSOR MECHANISM
Check the operation malfunction caused by reclining mechanism deformation or parts are loose.
OK or NG
OK
>> GO TO 3.
NG
>> Repair the malfunctioning parts.
3.
CHECK HARNESS CONTINUITY
1.
Disconnect driver seat control unit connector and reclining motor connector.
2.
Check continuity between driver seat control unit connector
B143 terminals 30 (L), 32 (R/W) and reclining motor connector
B147 terminals 30 (L), 32 (R/W).
3.
Check continuity between driver seat control unit connector
B143 terminals 30, 32 and body ground.
OK or NG
OK
>> Replace reclining motor.
NG
>> Repair or replace harness between driver seat control unit and reclining motor.
Connector
Terminals
(Wire color)
Condition
Signal
(+)
(–)
B143
30 (L)
Ground
Reclining
motor
operation
PIIA3270E
SIIA0693J
30 (L) – 30 (L)
: Continuity should exist.
32 (R/W) – 32 (R/W)
: Continuity should exist.
30 (L) – Ground
: Continuity should not exist.
32 (R/W) – Ground
: Continuity should not exist.
PIIA3271E
SE-66
AUTOMATIC DRIVE POSITIONER
Front End Seat Lifting Sensor Circuit Inspection
AIS001K4
1.
CHECK FRONT END LIFTING SENSOR INPUT/OUTPUT SIGNAL
1.
Turn ignition switch OFF.
2.
Check signal between driver seat control unit connector and
body ground, with oscilloscope.
OK or NG
OK
>> System is OK.
NG
>> GO TO 2.
2.
CHECK FRONT END LIFTING SENSOR MECHANISM
Check the operation malfunction caused by lifter mechanism deformation or parts are loose.
OK or NG
OK
>> GO TO 3.
NG
>> Repair the malfunctioning parts.
3.
CHECK HARNESS CONTINUITY
1.
Disconnect driver seat control unit connector and front lifting motor connector.
2.
Check continuity between driver seat control unit connector B143 terminals 21 (Y/B), 32 (R/W) and front
lifting motor connector B148 terminals 21 (Y/B), 32B (R/W).
3.
Check continuity between driver seat control unit connector
B143 terminals 21 (Y/B), 32 (R/W) and body ground.
OK or NG
OK
>> Replace front lifting motor.
NG
>> Repair or replace harness between driver seat control
unit and front lifting motor.
Connector
Terminals
(Wire color)
Condition
Signal
(+)
(–)
B143
21 (Y/B)
Ground
Front lift-
ing motor
operation
PIIA3272E
SIIA0691J
21 (Y/B) – 21 (Y/B)
: Continuity should exist.
32 (R/W) – 32B (R/W)
: Continuity should exist.
21 (Y/B) – Ground
: Continuity should not exist.
32 (R/W) – Ground
: Continuity should not exist.
PIIA3273E
AUTOMATIC DRIVE POSITIONER
SE-67
C
D
E
F
G
H
J
K
L
M
A
B
SE
Rear End Lifting Sensor Circuit Inspection
AIS001K5
1.
CHECK REAR END LIFTING SENSOR INPUT/OUTPUT SIGNAL
1.
Turn ignition switch OFF.
2.
Check signal between driver seat control unit connector body
ground, with oscilloscope.
OK or NG
OK
>> System is OK.
NG
>> GO TO 2.
2.
CHECK REAR END LIFTING SENSOR MECHANISM
Check the malfunction caused by lifter mechanism deformation or parts are loose.
OK or NG
OK
>> GO TO 3.
NG
>> Repair the malfunctioning parts.
3.
CHECK HARNESS CONTINUITY
1.
Disconnect driver seat control unit connector and rear lifting motor connector.
2.
Check continuity between driver seat control unit connector B143 terminals 31 (W/R), 32 (R/W) and rear
lifting motor connector B149 terminals 31 (W/R), 32C (R/W).
3.
Check continuity between driver seat control unit connector
B143 terminals 31 (W/R), 32 (R/W) and body ground.
OK or NG
OK
>> Replace rear lifting motor.
NG
>> Repair or replace harness between driver seat control
unit and rear lifting motor.
Connector
Terminals
(Wire color)
Condition
Signal
(+)
(–)
B143
31 (W/R)
Ground
Rear lift-
ing motor
operation
PIIA3274E
SIIA0693J
31 (W/R) – 31 (W/R)
: Continuity should exist.
32 (R/W) – 32C (R/W)
: Continuity should exist.
31 (W/R) – Ground
: Continuity should not exist.
32 (R/W) – Ground
: Continuity should not exist.
PIIA3275E
SE-68
AUTOMATIC DRIVE POSITIONER
Detention Switch Circuit Inspection
AIS001K6
1.
CHECK FUNCTION
With CONSULT-II
Check that when the A/T selector lever is in P-position, “DETENT
SW” on the DATA MONITOR becomes ON.
Without CONSULT-II
Carry out “SWITCH MONITOR” in the self-diagnosis function, and operate the A/T selector lever to check.
Refer to
OK or NG
OK
>> System is OK.
NG
>> GO TO 2.
2.
CHECK DETENTION SWITCH POWER SUPPLY CIRCUIT HARNESS
1.
Turn ignition switch OFF.
2.
Disconnect A/T device (detention switch) connector and “key switch and key lock solenoid” connector.
3.
Check continuity harness between A/T device (detention switch)
connectorM97 terminal 6 (PU/W) and key switch and key lock
solenoid connector M64 terminal 4 (PU/W).
4.
Check continuity harness between A/T device (detention switch)
connectorM97 terminal 6 (PU/W) and body ground.
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace harness between A/T device (deten-
tion switch) and key switch and key lock solenoid.
3.
CHECK DETENTION SWITCH
Check continuity between detection switch.
OK or NG
OK
>> GO TO 4.
NG
>> Replace detention switch.
Monitor item
[OPERATION or UNIT]
Contents
DETENT SW
ON/
OFF
The selector lever position "P position (ON)/other than P
position (OFF)" judged from the detente switch signal is
displayed.
PIIA0291E
6 (PU/W) – 4 (PU/W)
: Continuity should exist.
6 (PU/W) – Ground
: Continuity should not exist.
PIIA3276E
Connector
Terminals
(Wire color)
Condition
Continuity
(+)
(–)
M97
6 (PU/W)
7 (G/OR)
P–position
Continuity should not
exist
Other than
P–position
Continuity should exist
PIIA3349E
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