Infiniti Q45. Manual - part 833

AUTOMATIC DRIVE POSITIONER

SE-87

C

D

E

F

G

H

J

K

L

M

A

B

SE

3. 

CHECK HARNESS CONTINUITY

1.

Disconnect BCM connector and ADP steering switch connector.

2.

Check continuity between BCM connector M4 terminals 23, 36
and ADP steering switch connector M51 terminals 2, 3.

3.

Check continuity between BCM connector M4 terminals 23, 36
and ground.

OK or NG

OK

>> GO TO 4.

NG

>> Repair or replace harness between BCM and ADP steering switch.

4. 

CHECK ADP TILT STEERING SWITCH

Check continuity between ADP steering switch connector M51 termi-
nal 2, 3 and 1.

OK or NG

OK

>> GO TO 5.

NG

>> Replace ADP steering switch.

5. 

CHECK ADP STEERING SWITCH GROUND CIRCUIT

Check continuity between ADP steering switch connector M51 termi-
nal 1 and ground.

OK or NG

OK

>> Check the harness and connector.

NG

>> Repair or replace harness between ADP steering switch and ground. 

23 (W/R) – 3 (W/R)

: Continuity should exist.

36 (Y/G) – 2 (Y/G)

: Continuity should exist.

23 (W/R) – Ground

: Continuity should not exist.

36 (Y/G) – GRound

: Continuity should not exist.

PIIA3309E

Connector

Terminals

Condition

Continuity

M51

2

1

Tilt switch ON 
(UP operation)

Yes

Tilt switch OFF

No

3

Tilt switch ON
(DOWN operation)

Yes

Tilt switch OFF

No

PIIA4482E

1 (B) – Ground

: Continuity should exist.

PIIA3310E

SE-88

AUTOMATIC DRIVE POSITIONER

Check Seat Memory Indicator lamp System

NIS0013D

1. 

CHECK FUNCTION

With CONSULT-II

With “MEMORY SW INDCTR” in ACTIVE TEST, Check operation.

Without CONSULT-II

GO TO 2.

OK or NG

OK

>> System is OK.

NG

>> GO TO 2.

2. 

CHECK FUSE

Check 10A fuse [No.3, located in fuse block (J/B)]

NOTE:
Refer to 

SE-17, "Component Parts and Harness Connector Location"

 .

OK or NG

OK

>> GO TO 2.

NG

>> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse, refer to 

PG-

2, "POWER SUPPLY ROUTING"

 .

3. 

CHECK SEAT MEMORY SWITCH POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

 Disconnect seat memory switch connector.

3.

Check voltage between seat memory switch connector D3 ter-
minal 5 and ground.

OK or NG

OK

>> GO TO 4

NG

>> Repair or replace harness between fuse block (J/B) and seat memory switch.

Test item

Description

MEMORY SW 
INDCTR

The memory switch indicator is lit by receiving the drive signal.

PIIA0319E

5 (P/L) – Ground

: Battery voltage.

PIIA4595E

AUTOMATIC DRIVE POSITIONER

SE-89

C

D

E

F

G

H

J

K

L

M

A

B

SE

4. 

CHECK HARNESS CONTINUITY

1.

Disconnect BCM connector.

2.

Check continuity between BCM connector M4 terminals 106,
112 and seat memory switch connector D3 terminals 6, 7. 

3.

Check continuity between BCM connector M4 terminals 106,
112 and ground.

OK or NG

OK

>> GO TO 5.

NG

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

5. 

CHECK SEAT MEMORY SWITCH INDICATOR SIGNAL

Check voltage between BCM connector M4 terminals 106, 112 and
ground.

OK or NG

OK

>> Replace BCM.

NG

>> Replace seat memory switch.

Check Lumber Support Circuit

NIS0013E

1. 

CHECK LUMBER SUPPORT SWITCH

1.

Turn ignition switch OFF.

2.

Disconnect front power seat switch (driver side) connector.

3.

Check voltage between power seat switch (driver side) connec-
tor B144 terminal 16 and ground.

OK or NG

OK

>> GO TO 2.

NG

>> Repair or replace harness between fuse block (J/B) and power seat switch (Driver side). 

106 (BR/Y) – 6 (BR/Y)

: Continuity should exist.

112 (L/W) – 7 (L/W)

: Continuity should exist.

106 (BR/Y) – Ground

: Continuity should not exist.

112 (L/W) – Ground

: Continuity should not exist.

PIIA4373E

106 (BR/Y) – Ground

: Battery voltage.

112 (L/W) – Ground

: Battery voltage.

PIIA3313E

16 (R) – Ground

: Battery voltage.

PIIA3376E

SE-90

AUTOMATIC DRIVE POSITIONER

2. 

CHECK LUMBER SUPPORT SWITCH

Check continuity power seat switch connector B144 terminal 14, 16
and 3 or 5.

OK or NG

OK

>> GO TO 3.

NG

>> The harness and connector is checked, and it is normal, replace power seat switch.

3. 

CHECK LUMBER SUPPORT MOTOR HARNESS

1.

Disconnect lumber support motor connector.

2.

Check continuity between power seat switch connector (driver
side) B144 terminal 3, 5 and lumber support motor connector
B145 terminal 3, 5.

3.

Check continuity between power seat switch connector (driver
side) B144 terminal 3, 5 and ground.

OK or NG

OK

>> GO TO 4.

NG

>> Repair or replace harness between power seat switch (driver side) and lumber support motor.

4. 

 CHECK LUMBER SUPPORT SWITCH

Check continuity between power seat switch connector (driver side)
B144 terminal 14 and ground.

OK or NG

OK

>> Check harness and connector.

NG

>> Repair or replace harness between power seat switch (driver side) and ground. 

Connector

Terminal

Condition

Continuity

B144

3 

16

Lumber support switch forward

Yes

14

Lumber support switch backward

5 

16

Lumber support switch backward

14

Lumber support switch forward

PIIB0385E

3 (GY) 

−

 3 (GY)

:Continuity should exist.

5 (W/B) 

−

 5 (W/B)

:Continuity should exist.

3 (GY) 

−

 Ground

:Continuity should not exist.

5 (W/B) 

−

 Ground

:Continuity should not exist.

PIIA4375E

14 (B/W) – Ground

: Continuity should exist.

PIIA3297E