Infiniti Q45. Manual — part 840
POWER SEAT
SE-115
C
D
E
F
G
H
J
K
L
M
A
B
SE
2.
CHECK REAR POWER SEAT SWITCH HARNESS
1.
Disconnect rear power seat control unit connector and rear
power seat switch connector.
2.
Check continuity between rear power seat control unit connector
B168 (LH), B368 (RH) terminal 18, 24 and rear power seat
switch connector D55 (LH), D75 (RH) terminal 7, 8.
3.
Check continuity between rear power seat control unit connector B168 (LH), B368 (RH) terminal 18, 24
and ground.
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace harness between rear power seat control unit and rear power seat switch.
3.
CHECK REAR POWER SEAT SWITCH
Check continuity between rear power seat switch as follows.
OK or NG
OK
>> GO TO 4.
NG
>> Replace rear power seat switch.
4.
CHECK REAR POWER SEAT SWITCH GROUND CIRCUIT
Check continuity between rear power seat switch connector D55
(LH), D75 (RH) terminal 2 and ground.
OK or NG
OK
>> Replace rear power seat control unit.
NG
>> Repair or replace harness between rear power seat
switch and ground.
LH
18 (BR/W)
−
7 (G/Y)
:Continuity should exist
24 (L/G)
−
8 (OR/L)
:Continuity should exist
RH
18 (BR/W)
−
8 (OR/L)
:Continuity should exist
24 (L/G)
−
7 (G/Y)
:Continuity should exist
18 (BR/W)
−
Ground
:Continuity should not exist
24 (L/G)
−
Ground
:Continuity should not exist
PIIA4018E
Terminal
Condition
Continuity
LH
7
2
Rear power seat switch (sliding switch) backward
Yes
Rear power seat switch (sliding switch) OFF
No
8
Rear power seat switch (sliding switch) forward
Yes
Rear power seat switch (sliding switch) OFF
No
RH
7
Rear power seat switch (sliding switch) forward
Yes
Rear power seat switch (sliding switch) OFF
No
8
Rear power seat switch (sliding switch) backward
Yes
Rear power seat switch (sliding switch) OFF
No
PIIA3985E
2 (B)
−
Ground
:Continuity should exist
PIIA3986E
SE-116
POWER SEAT
Check Auto Return Cancel Switch Circuit 1
NIS0013X
WITH HEATED SEAT
1.
CHECK AUTO RETURN CANCEL SWITCH POWER SUPPLY
1.
Turn ignition switch OFF.
2.
Check voltage between rear power seat control unit connector
and ground.
OK or NG
OK
>> Auto return cancel switch circuit check is OK.
NG
>> GO TO 2.
2.
CHECK REAR POWER SEAT SWITCH HARNESS
1.
Disconnect rear power seat control unit connector and auto
return cancel switch connector.
2.
Check continuity between rear power seat control unit connector
B163 (LH), B363 (RH) terminal 36 and auto return cancel switch
connector B504 terminal 1.
3.
Check continuity between rear power seat control unit connector
B163 (LH), B363 (RH) terminal 36 and ground.
OK or NG
OK
>> Check the condition of the harness and connector.
NG
>> Repair or replace harness between rear power seat control unit and auto return cancel switch.
WITHOUT HEATED SEAT
1.
CHECK AUTO RETURN CANCEL SWITCH POWER SUPPLY
1.
Turn ignition switch OFF.
2.
Check voltage between rear power seat control unit connector
and ground.
OK or NG
OK
>> Auto return cancel switch circuit check is OK.
NG
>> GO TO 2.
Connector
Terminal
(Wire color)
Condition
Voltage (V)
(Approx.)
(+)
(–)
B163 (LH)
B363 (RH)
36 (LG/R)
Ground
Auto return cancel switch ON
and, rear door LH open
5
Other than above
0
PIIA3987E
36 (LG/R)
−
1 (BR)
:Continuity should exist
36 (LG/R)
−
Ground
:Continuity should not exist
PIIA3988E
Connector
Terminal
(Wire color)
Condition
Voltage (V)
(Approx.)
(+)
(–)
B168 (LH)
B368 (RH)
36 (LG/R)
Ground
Auto return cancel switch ON
and, rear door open
5
Other than above
0
PIIA4021E
POWER SEAT
SE-117
C
D
E
F
G
H
J
K
L
M
A
B
SE
2.
CHECK AUTO CANCEL SWITCH HARNESS
1.
Disconnect rear power seat control unit connector and auto
return cancel switch connector.
2.
Check continuity between rear power seat control unit connector
B168 (LH), B368 (RH) terminal 36 and auto return cancel switch
connector B504 terminal 1.
3.
Check continuity between rear power seat control unit connector
B168 (LH), B368 (RH) terminal 36 and ground.
OK or NG
OK
>> Check the harness and connector.
NG
>> Repair or replace harness between rear power seat control unit and auto return cancel switch.
Check Auto Return Cancel Switch Circuit 2
NIS0013Y
WITH HEATED SEAT
1.
CHECK AUTO RETURN CANCEL SWITCH HARNESS
1.
Turn ignition switch OFF.
2.
Disconnect rear power seat control unit connector and auto
return cancel switch connector.
3.
Check continuity between rear power seat control unit connector
B163 (LH), B363 (RH) terminal 36 and auto return cancel switch
connector B504 terminal 1.
4.
Check continuity between rear power seat control unit connector
B163 (LH), B363 (RH) terminal 36 and ground.
OK or NG
OK
>> GO TO 2.
NG
>> Repair or replace harness between rear power seat control unit and auto return cancel switch.
2.
CHECK AUTO RETURN CANCEL SWITCH
Check continuity between auto cancel switch as follows.
OK or NG
OK
>> GO TO 3.
NG
>> Replace auto return cancel switch.
36 (LG/R)
−
1 (BR)
:Continuity should exist
36 (LG/R)
−
Ground
:Continuity should not exist
PIIA4022E
36 (LG/R)
−
1 (BR)
:Continuity should exist
36 (LG/R)
−
Ground
:Continuity should not exist
PIIA3988E
Terminal
Condition
Continuity
1
2
Auto return cancel switch cancelled
Yes
Auto return cancel switch ON
No
PIIA3989E
SE-118
POWER SEAT
3.
CHECK AUTO RETURN CANCEL SWITCH GROUND HARNESS
Check continuity between auto return cancel switch connector B504
terminal 2 and ground.
OK or NG
OK
>> Check the harness and connector.
NG
>> Repair or replace harness between auto return cancel
switch and ground.
WITHOUT HEATED SEAT
1.
CHECK REAR AUTO RETURN CANCEL SWITCH HARNESS
1.
Turn ignition switch OFF.
2.
Disconnect rear power seat control unit connector and auto
return cancel switch connector.
3.
Check continuity between rear power seat control unit connector
B168 (LH), B368 (RH) terminal 36 and auto return cancel switch
connector B504 terminal 1.
4.
Check continuity between rear power seat control unit connector
B168 (LH), B368 (RH) terminal 36 and ground.
OK or NG
OK
>> GO TO 2.
NG
>> Repair or replace harness between rear power seat control unit and auto return cancel switch.
2.
CHECK AUTO RETURN CANCEL SWITCH
Check continuity between auto cancel switch as follows.
OK or NG
OK
>> GO TO 3.
NG
>> Replace auto return cancel switch.
2 (B)
−
Ground
:Continuity should exist
PIIA3990E
36 (LG/R)
−
1 (BR)
:Continuity should exist
36 (LG/R)
−
Ground
:Continuity should not exist
PIIA4022E
Terminal
Condition
Continuity
1
2
Auto return cancel switch cancelled
Yes
Auto return cancel switch ON
No
PIIA3989E
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