Infiniti F50. Manual - part 771

AUTOMATIC DRIVE POSITIONER

SE-75

C

D

E

F

G

H

J

K

L

M

A

B

SE

2. 

CHECK FUNCTION

With CONSULT-II

With "VHCL SPEED SE" on the DATA MONITOR, Check vehicle
speed signal.

Without CONSULT-II

Carry out the self-diagnosis. Refer to 

SE-51

 .

OK or NG

OK

>> System is OK.

NG

>> GO TO 3.

3. 

CHECK VEHICLE SPEED INPUT/OUTPUT

1.

Start the engine.

2.

Check signal between BCM connector and ground, with oscillo-
scope.

OK or NG

OK

>> Replace BCM.

NG

>> GO TO 4.

Monitor item [OPERA-

TION or UNIT]

Contents

VHCL
SPEED SE

"7km/

7km"

The present vehicle speed (less than 7 km/h (4 MPH), or 
7 km/h (4 MPH) or higher) is displayed.

PIIA0291E

Connector

Terminals 

(Wire color)

Condition

Signal

(+)

(–)

M4

49 (PU/W)

Ground

Vehicle 
speed is 
approx.40 
km/h (25 
MPH)

PIIA3289E

PIIA3279E

SE-76

AUTOMATIC DRIVE POSITIONER

4. 

CHECK HARNESS CONTINUITY

1.

Turn ignition switch OFF.

2.

Disconnect BCM and combination meter connector.

3.

Check continuity between BCM connector M4 terminal 49 (PU/
W) and combination meter connector M41 terminal 18 (PU/W).

4.

Check continuity between BCM connector M4 terminal 49 (PU/
W) and ground.

OK or NG

OK

>> Check meter control unit 

DI-7

 .

NG

>> Repair or replace harness between BCM and combina-

tion meter.

Seat Memory Switch Circuit Inspection

EIS00423

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 self-diagnosis function, and operate "Setting switch, memory switch 1, mem-
ory switch 2" to check. Refer to 

SE-50

 .

OK or NG

OK

>> System is OK.

NG

>> GO TO 2.

49 (PU/W) – 18 (PU/W)

: Continuity should exist.

49 (PU/W) – Ground

: Continuity should not exist.

PIIA0308E

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

AUTOMATIC DRIVE POSITIONER

SE-77

C

D

E

F

G

H

J

K

L

M

A

B

SE

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.

3. 

CHECK HARNESS CONTINUITY

1.

Disconnect BCM connector.

2.

Check continuity between BCM connector M4 terminals 39 (G),
43 (OR), 50 (R/Y) and seat memory switch connector D3 termi-
nals 1 (G), 2 (OR), 3 (R/Y).

3.

Check continuity between BCM connector M4 terminals 39 (G),
43 (OR/L), 50 (P/L) 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 (B) and ground.

OK or NG

OK

>> Replace BCM.

NG

>> Repair or replace harness between seat memory switch

and ground.

Con–

nector

Terminals

 (Wire color)

Condition

Continuity

Terminal

D3

3

4

Set switch: ON

Continuity should exist

Set switch: OFF

Continuity should not exist

1

Memory switch 1 ON

Continuity should exist

Memory switch 1: OFF

Continuity should not exist.

2

Memory switch 2: ON

Continuity should exist

Memory switch 2: OFF

Continuity should not exist.

PIIA4371E

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. 

PIIA3293E

SE-78

AUTOMATIC DRIVE POSITIONER

Seat Sliding Switch Circuit Inspection

EIS00424

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 self-diagnosis function, and operate the sliding switch to check. Refer to

SE-50

 .

OK or NG

OK

>> Replace the driver seat control unit.

NG

>> GO TO 2.

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.

Monitor item [OPER-

ATION 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) sig-
nal is displayed.

PIIA0313E

Terminals

 (Wire color)

Condition

Voltage (V) 

(Approx.)

Connector

Terminal

(+)

(–)

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