Infiniti F50. Manual - part 770

AUTOMATIC DRIVE POSITIONER

SE-71

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3. 

CHECK HARNESS

1.

Disconnect BCM connector and tilt sensor connector.

2.

Check continuity harness between BCM connector M4 terminals 46 (P/L), 53 (L/W), 54 (LG/B) and tilt
sensor connector M57 terminals 1 (LG/B), 2 (P/L), 3 (L/W).

3.

BCM connector M4 terminals 46 (P/L), 53 (L/W), 54 (LG/B) and
ground.

OK or NG

OK

>> Replace tilt sensor.

NG

>> Repair or replace harness between BCM and tilt sensor.

Key Switch and Key Lock Solenoid Circuit Inspection.

EIS0043N

1. 

CHECK KEY SWITCH AND KEY LOCK SOLENOID

With CONSULT-II

With "IGN KEY SW" on the DATA MONITOR, Check ON/OFF opera-
tion.

Without CONSULT-II

Check voltage between BCM connector ground.

OK or NG

OK

>> System is OK.

NG

>> GO TO 2.

46 (P/L) – 2 (P/L)

: Continuity should exist.

53 (L/W) – 3 (L/W)

: Continuity should exist.

54 (LG/B) – 1 (LG/B)

: Continuity should exist.

46 (P/L) – Ground

: Continuity should not exist.

53 (L/W) – Ground

: Continuity should not exist.

54 (LG/B) – Ground

: Continuity should not exist.

PIIA3285E

Monitor item [OPERA-

TION or UNIT]

Contents

IGN KEY SW

"ON/

OFF"

Key inserted (ON)/key removed (OFF) status judged from 
the key detection switch is displayed.

PIIA0298E

Connector

Terminals 

(Wire color)

Condition

Voltage (V) 

(Approx.)

(+)

(–)

M4

69 (PU/W)

ground

Remove the 
key

0

ground

Insert the key

Battery voltage

PIIA0302E

SE-72

AUTOMATIC DRIVE POSITIONER

2. 

CHECK FUSE 

Check if any of the following fuses is blown.

NOTE:
Refer to

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

 .

OK or NG

OK

>> GO TO 3.

NG

>> If fuse is blown, be sure to eliminate cause of problem before installing new fuse. Refer to 

SE-17,

"Component Parts and Harness Connector Location"

 .

3. 

KEY SWITCH AND KEY LOCK SOLENOID POWER SUPPLY CIRCUIT INSPECTION

1.

Turn ignition switch OFF, 

2.

Check voltage between “key switch and key lock solenoid” con-
nector M64 terminal 3 (LG) and ground.

OK or NG

OK

>> GO TO 4.

NG

>> Check harness between “key switch and key lock sole-

noid” and fuse.

4. 

CHECK KEY SWITCH

1.

Disconnect key switch connector.

2.

Check continuity between key switch.

OK or NG

OK

>> GO TO 5.

NG

>> Replace key switch and key lock solenoid (key switch) switch.

Power source

Fuse No.

Unit

BAT power supply

#8 (10A)

Fuse block (J/B) No. 1

3 (LG) – Ground

: Battery voltage.

PIIA3286E

Connector

Terminals

Condition

Continuity

M64

3 – 4

Key is inserted in ignition key cylinder.

YES

Key is removed from ignition key cylinder. 

NO

PIIA3044E

AUTOMATIC DRIVE POSITIONER

SE-73

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5. 

CHECK HARNESS CONTINUITY

1.

Disconnect “key switch and key lock solenoid” connector and BCM connector.

2.

Check continuity between key switch and key lock solenoid connector M64 terminal 4 (PU/W) and BCM
connector M4 terminal 69 (PU/W).

3.

Check continuity between key switch and key lock solenoid con-
nector M64 terminal 4 (PU/W) and ground.

OK or NG

OK

>> Check the condition of the harness and connector.

NG

>> Repair or replace harness between key switch and key

lock solenoid and BCM.

Front Door Switch (Driver Side) Circuit Inspection.

EIS00421

1. 

CHECK FUNCTION

With CONSULT-II

With "DOOR SW DR" on the DATA MONITOR, check ON/OFF oper-
ation when the driver door is open and closed.

Without CONSULT-II

Carry out "SWITCH MONITOR" in the self-diagnosis function, and open and close the driver door to check.
Refer to 

SE-50

 .

OK or NG

OK

>> System is OK.

NG

>> GO TO 2.

4 (PU/W) – 69 (PU/W)

: Continuity should exist.

4 (PU/W) – Ground

: Continuity should not exist.

PIIA3287E

Monitor item [OPERA-

TION or UNIT]

Contents

DOOR SW
DR

"ON/

OFF"

Door open (ON)/door closed (OFF) status judged from 
the driver door switch is displayed.

PIIA0291E

SE-74

AUTOMATIC DRIVE POSITIONER

2. 

CHECK FRONT DOOR SWITCH (DRIVER SIDE)

1.

Turn ignition switch OFF.

2.

Disconnect door switch (driver side) connector.

3.

Check continuity between (driver side) door switch connector and ground part of door switch.

OK or NG

OK

>> GO TO 3.

NG

>> Replace door switch (driver side).

3. 

CHECK HARNESS CONTINUITY

1.

Disconnect BCM connector.

2.

Check continuity between BCM connector M4 terminal 142 (R/
Y) and front door switch connector B20 terminal 1 (W/R).

3.

Check continuity between BCM connector M4 terminal 142 (W/
R) and ground.

OK or NG

OK

>> Replace BCM.

NG

>> Repair or replace harness between BCM and front door

switch (driver side).

Vehicle Speed Signal Inspection

EIS00422

1. 

CHECK SYMPTOM

Check that the speedometer in the combination meter operates normally.

OK or NG

OK

>> GO TO 2.

NG

>> Check vehicle speed signal. Refer to 

DI-122

 . 

Connec-

tor

Terminals

 (Wire color)

Condition

Continuity

(+)

(–)

B20

1

Ground part of 

door switch

With the front door 
switch (driver side) 
pressed.

NO

With the front door 
switch (driver side) 
released.

YES

PIIA3351E

142 (W/R) – 1 (W/R)

: Continuity should exist.

142 (W/R) – Ground

: Continuity should not exist.

PIIA3346E