Infiniti M45 (Y34). Manual — part 765
AUTOMATIC DRIVE POSITIONER
SE-81
C
D
E
F
G
H
J
K
L
M
A
B
SE
3.
CHECK HARNESS CONTINUITY
1.
Disconnect driver seat control unit connector and power seat switch (driver side) connector.
2.
Check continuity between driver seat control unit connector
B143 terminals 18 (GY/B), 24 (SB) and power seat switch
(driver side) connector B144 terminals 18 (GY/B), 24 (SB).
3.
Check continuity between driver seat control unit connector
B143 terminals 18 (GY/B), 24 (SB) and body ground.
OK or NG
OK
>> GO TO 4.
NG
>> Repair or replace harness between driver seat control unit and power seat switch.
4.
RECLINING SWITCH INSPECTION
Check continuity between driver seat switch.
OK or NG
OK
>> GO TO 5.
NG
>> Replace power seat switch (driver side).
5.
CHECK POWER SEAT SWITCH GROUND CIRCUIT
Check continuity between power seat switch B144 terminal 14 (B/W)
and body ground.
OK or NG
OK
>> Check the harness and connector.
NG
>> Repair or replace harness between power seat switch (driver side) and body ground.
18 (GY/B) – 18 (GY/B)
: Continuity should exist.
24 (SB) – 24 (SB)
: Continuity should exist.
18 (GY/B) – Ground
: Continuity should not exist.
24 (SB) – Ground
: Continuity should not exist.
PIIA3300E
Terminals
(Wire color)
Condition
Continuity
Connector
Terminal
(+)
(–)
B143
18 (GY/B)
14 (B/W)
Reclining switch ON
(FR operation)
Yes
Reclining switch
OFF
No
24 (SB)
Reclining switch ON
(RR operation)
Yes
Reclining switch
OFF
No
PIIA4478E
14 (B/W) – Ground
: Continuity should exist.
PIIA3297E
SE-82
AUTOMATIC DRIVE POSITIONER
Front End Seat Lifting Switch Circuit Inspection
AIS001KF
1.
CHECK FUNCTION
With CONSULT-II
With “LIFT FR SW-UP, LIFT FR SW-DN” on the DATA MONITOR,
operate the front lifting switch to check ON/OFF operation.
Without CONSULT-II
Carry out “SWITCH MONITOR” in the self-diagnosis function, and operate the front lifting switch to check.
Refer to
OK or NG
OK
>> Replace the driver seat control unit.
NG
>> GO TO 2.
2.
CHECK FRONT END LIFTING SWITCH INPUT/OUTPUT
1.
Turn ignition switch OFF.
2.
Check voltage between driver seat control unit B143 and body
ground.
OK or NG
OK
>> System is OK.
NG
>> GO TO 3.
Monitor item [OPERA-
TION or UNIT]
Contents
LIFT FR SW–
DN
"ON/
OFF"
ON / OFF status judged from the FR lifter switch
(DOWN) signal is displayed.
LIFT RR SW–
UP
"ON/
OFF"
ON / OFF status judged from the RR lifter switch (UP)
signal is displayed.
PIIA0323E
Connector
Terminals
(Wire color)
Condition
Voltage (V)
(Approx)
(+)
(–)
B143
19 (L/R)
Ground
Front lifting switch ON (UP
operation)
0
Front lifting switch OFF
5
25 (OR/B)
Front lifting switch ON
(DOWN operation)
0
Front lifting switch OFF
5
PIIA3301E
AUTOMATIC DRIVE POSITIONER
SE-83
C
D
E
F
G
H
J
K
L
M
A
B
SE
3.
CHECK HARNESS CONTINUITY
1.
Disconnect driver seat control unit connector and power seat switch (driver side) connector.
2.
Check continuity between driver seat control unit connector
B143 terminals 19 (L/R), 25 (OR/B) and driver seat switch con-
nector B144 terminals 19 (L/R), 25 (OR/B).
3.
Check continuity between driver seat control unit connector
B143 terminals 19 (L/R), 25 (OR/B) and body ground.
OK or NG
OK
>> GO TO 4.
NG
>> Repair or replace harness between driver seat control unit and power seat switch.
4.
CHECK FRONT END LIFTING SWITCH
Check continuity between driver seat switch.
OK or NG
OK
>> GO TO 5.
NG
>> Replace driver power seat switch.
5.
CHECK POWER SEAT SWITCH GROUND CIRCUIT
●
Check continuity between power seat switch connector B144
terminal 14 (B/W) and body ground.
OK or NG
OK
>> Check the harness and connector.
NG
>> Repair or replace harness between power seat switch and body ground.
19 (L/R) – 19 (L/R)
: Continuity should exist.
25 (OR/B) – 25 (OR/B)
: Continuity should exist.
19 (L/R) – Ground
: Continuity should not exist.
25 (OR/B) – Ground
: Continuity should not exist.
PIIA3302E
Connector
Terminals
(Wire color)
Condition
Continuity
(+)
(–)
B143
19 (L/R)
14 (B/W)
Front lifting switch ON (UP
operation)
Yes
Front lifting switch OFF
No
25 (OR/B)
Front lifting switch ON
(DOWN operation)
Yes
Front lifting switch OFF
No
PIIA4479E
14 (B/W) – Ground
: Continuity should exist.
PIIA3297E
SE-84
AUTOMATIC DRIVE POSITIONER
Rear End Seat Lifting Switch Circuit Inspection
AIS001KG
1.
CHECK FUNCTION
With CONSULT-II
With “LIFT RR SW-UP, LIFT RR SW-DN” on the DATA MONITOR,
operate the rear lifting switch to check ON/OFF operation.
Without CONSULT-II
Carry out “SWITCH MONITOR” in the self-diagnosis function, and operate the rear lifting switch to check.
Refer to
OK or NG
OK
>> Replace the driver seat control unit.
NG
>> GO TO 2.
2.
CHECK REAR END LIFTING SWITCH INPUT/OUTPUT
1.
Turn ignition switch turn OFF.
2.
Check voltage between driver seat control unit connector and
body ground.
OK or NG
OK
>> System is OK.
NG
>> GO TO 3.
Monitor item [OPERATION or
UNIT]
Contents
LIFT RR SW–UP
"ON/OFF"
Operation (ON)/open (OFF) status judged
from the RR lifter switch (UP) signal is dis-
played.
LIFT RR SW–DN
"ON/OFF"
Operation (ON)/open (OFF) status judged
from the RR lifter switch (DOWN) signal is
displayed.
PIIA0323E
Connector
Terminals
(Wire color)
Condition
Voltage (V)
(Approx)
(+)
(–)
B143
26 (P/B)
Ground
Rear lifting switch ON(UP
operation)
0
Rear lifting switch OFF
5
27 (B/Y)
Rear lifting switch ON
(DOWN operation)
0
Rear lifting switch OFF
5
PIIA3303E
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