Infiniti Q45. Manual — part 831
AUTOMATIC DRIVE POSITIONER
SE-79
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, 24 and power seat switch (driver side) con-
nector B144 terminals 18, 24.
3.
Check continuity between driver seat control unit connector
B143 terminals 18, 24 and ground.
OK or NG
OK
>> GO TO 4.
NG
>> Repair or replace harness between driver seat control unit and power seat switch.
4.
CHECK RECLINING SWITCH
Check continuity between driver seat control unit connector B144
terminal 18, 24 and 15.
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 15 and
ground.
OK or NG
OK
>> Check the condition of the harness and connector.
NG
>> Repair or replace harness between power seat switch (driver side) and 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.
PIIA4353E
Connector
Terminals Condition
Continuity
B144
18
15
Reclining switch ON
(forward operation)
Yes
Reclining switch OFF
No
24
Reclining switch ON
(backward operation)
Yes
Reclining switch OFF
No
PIIA4381E
15 (B) – Ground
: Continuity should exist.
PIIA3375E
SE-80
AUTOMATIC DRIVE POSITIONER
Check Front Lifting Switch Circuit
NIS00139
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 on-board 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 LIFTING SWITCH INPUT/OUTPUT
1.
Turn ignition switch OFF.
2.
Check voltage between driver seat control unit connector and
ground.
OK or NG
OK
>> System is OK.
NG
>> GO TO 3.
Monitor item
[OPERATION or UNIT]
Contents
LIFT FR SW – DN
"ON/
OFF"
Operation (ON)/open (OFF) status judged from the
FR lifter switch (DOWN) signal is displayed.
LIFT RR SW – UP
"ON/
OFF"
Operation (ON)/open (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
PIIA4355E
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 19, 25 and driver seat switch connector B144
terminals 19, 25.
3.
Check continuity between driver seat control unit connector
B143 terminals 19, 25 and ground
OK or NG
OK
>> GO TO 4.
NG
>> Repair or replace harness between driver seat control unit and power seat switch (driver side).
4.
CHECK FRONT END LIFTING SWITCH
Check continuity between driver seat control unit connector B144
terminal 19, 25 and 15.
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 connector B144 termi-
nal 15 and ground.
OK or NG
OK
>> Check the condition of the harness and connector.
NG
>> Repair or replace harness between power seat switch (driver side) and 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.
PIIA4354E
Connector
Terminals Condition
Continuity
B144
19
15
Front lifting switch ON
(UP operation)
Yes
Front lifting switch OFF
No
25
Front lifting switch ON
(DOWN operation)
Yes
Front lifting switch OFF
No
PIIA4382E
15 (B) – Ground
: Continuity should exist.
PIIA3375E
SE-82
AUTOMATIC DRIVE POSITIONER
Check Rear Lifting Switch Circuit
NIS0013A
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 on-board 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 LIFTING SWITCH INPUT/OUTPUT
1.
Turn ignition switch OFF.
2.
Check voltage between driver seat control unit connector and
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 displayed.
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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