Infiniti Q45. Manual - part 830

AUTOMATIC DRIVE POSITIONER

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Check Seat Memory Switch Circuit

NIS00136

1. 

CHECK FUNCTION

 With CONSULT-II

With "SET SW,MEMORY SW1 MEMORY SW2" on the DATA MONI-
TOR, operate the switch to check ON/OFF operation. 

 Without CONSULT-II

Carry out "switch monitor" in the on-board diagnosis function, and operate "Setting switch, memory switch 1,
memory switch 2" to check. Refer to 

SE-49, "SWITCH MONITOR"

 .

OK or NG

OK

>> System is OK.

NG

>> GO TO 2.

2. 

CHECK SEAT MEMORY SWITCH

1.

Turn ignition switch OFF.

2.

Disconnect seat memory switch connector.

3.

Check continuity between seat memory switch connector and
ground.

OK or NG

OK

>> GO TO 3.

NG

>> Replace seat memory switch.

Monitor item

[OPERATION or UNIT]

Contents

MEMORY SW1

"ON/OFF"

ON / OFF status judged from the seat 
memory switch 1 signal is displayed.

MEMORY SW2

"ON/OFF"

ON/OFF status judged from the seat 
memory switch 2 signal is displayed.

SET SW

"ON/OFF"

ON/OFF status judged from the setting 
switch signal is displayed.

PIIA0309E

Connector

Terminals

Condition

Continuity

D3

3

4

Set switch: ON

Yes

Set switch: OFF

No

1

Memory switch 1 ON

Yes

Memory switch 1: OFF

No

2

Memory switch 2: ON

Yes

Memory switch 2: OFF

No

PIIA4371E

SE-76

AUTOMATIC DRIVE POSITIONER

3. 

CHECK HARNESS CONTINUITY

1.

Disconnect BCM connector.

2.

Check continuity between BCM connector M4 terminals 39, 43,
50 and seat memory switch connector D3 terminals 1, 2, 3.

3.

Check continuity between BCM connector M4 terminals 39, 43,
50 and ground.

OK or NG

OK

>> GO TO 4.

NG

>> Repair or replace harness between BCM and seat memory switch.

4. 

CHECK SEAT MEMORY SWITCH GROUND CIRCUIT

Check continuity at harness between seat memory switch D3 termi-
nal 4 and ground.

OK or NG

OK

>> Replace BCM.

NG

>> Repair or replace harness between seat memory switch

and ground.

Check Sliding Switch Circuit

NIS00137

1. 

CHECK FUNCTION

 With CONSULT-II

With “SLIDE SW–FR,SLIDE SWRR” on the DATA MONITOR, oper-
ate the sliding switch to check ON/OFF operation.

 Without CONSULT-II

Carry out "SWITCH MONITOR" in the on-board diagnosis function, and operate the sliding switch to check.
Refer to 

SE-49, "SWITCH MONITOR"

 .

OK or NG

OK

>> Replace the driver seat control unit.

NG

>> GO TO 2.

39 (G) – 1 (G)

: Continuity should exist.

43 (OR) – 2 (OR)

: Continuity should exist.

50 (R/Y) – 3 (R/Y)

: Continuity should exist.

39 (G) – Ground

: Continuity should not exist.

43 (OR) – Ground

: Continuity should not exist.

50 (R/Y) – Ground

: Continuity should not exist.

PIIA4356E

4 (B) – Ground

: Continuity should exist. 

PIIB1746E

Monitor item

[OPERATION or UNIT]

Contents

SLIDE SW – FR

"ON/

OFF"

ON /OFF status judged from the sliding switch (FR) 
signal is displayed.

SLIDE SW – RR

"ON/

OFF"

ON / OFF status judged from the sliding switch (RR) 
signal is displayed.

PIIA0313E

AUTOMATIC DRIVE POSITIONER

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2. 

CHECK SLIDING 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.

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 17, 23 and driver power seat switch connector
B144 terminals 17, 23.

3.

Check continuity between driver seat control unit connector
B143 terminals 17, 23 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 SLIDING SWITCH

Check continuity between driver seat control unit connector B144
terminal 17, 23 and 15.

OK or NG

OK

>> GO TO 5.

NG

>> Replace driver power seat switch.

Connector

Terminals

 (Wire color)

Condition

Voltage (V) 

(Approx.)

(+)

(–)

B143

17 (Y/R)

Ground

Sliding switch ON 
(forward operation)

0

Sliding switch OFF

5

23 (G/W)

Sliding switch ON 
(backward operation)

0

Sliding switch OFF

5

PIIA4150E

17 (Y/R) – 17 (Y/R)

: Continuity should exist.

23 (G/W) – 23 (G/W)

: Continuity should exist.

17 (Y/R) – Ground

: Continuity should not exist.

23 (G/W) – Ground

: Continuity should not exist.

PIIA4148E

Connector

Terminals

Condition

Continuity

B144

17

15

Sliding switch ON
(forward operation)

Yes

Sliding switch OFF

No

23

Sliding switch ON
(backward operation)

Yes

Sliding switch OFF

No

PIIA4380E

SE-78

AUTOMATIC DRIVE POSITIONER

5. 

CHECK POWER SEAT SWITCH GROUND CIRCUIT

Check continuity between power seat switch (driver side) connector
B144 terminal 15 and ground.

OK or NG

OK

>> Check the condition of the harness and connector.

NG

>> Repair or replace harness between driver seat switch

and ground.

Check Reclining Switch System

NIS00138

1. 

CHECK FUNCTION

 With CONSULT-II

With "RECLINING SW–FR,RECLINING SWRR" on the DATA MON-
ITOR, operate the reclining switch to check ON/OFF operation.

 Without CONSULT-II

Carry out "SWITCH MONITOR" in the on-board diagnosis function, and operate the reclining switch to check.
Refer to 

SE-49, "SWITCH MONITOR"

 .

OK or NG

OK

>> Replace the driver seat control unit.

NG

>> GO TO 2.

2. 

CHECK RECLINING 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.

15 (B) – Ground

: Continuity should exist.

PIIA3375E

Monitor item

[OPERATION or UNIT]

Contents

RECLN SW – FR

"ON/

OFF"

Operation (ON)/open (OFF) status judged from the 
reclining switch (FR) signal is displayed.

RECLN SW – RR

"ON/

OFF"

Operation (ON)/open (OFF) status judged from the 
reclining switch (RR) signal is displayed.

PIIA0313E

Connector

Terminals 

(Wire color)

Condition

Voltage (V) 

(Approx.)

(+)

(–)

B143

18 (GY/B)

Ground

Reclining switch ON 
(forward operation)

0

Reclining switch OFF

5

24 (SB)

Reclining switch ON 
(backward operation)

0

Reclining switch OFF

5

PIIA4149E