Infiniti F50. Manual - part 205

REMOTE KEYLESS ENTRY SYSTEM

BL-67

C

D

E

F

G

H

J

K

L

M

A

B

BL

Terminal and Reference Value for BCM

EIS0028G

TER-

MINAL

WIRE 

COLOR

ITEM

CONDITION

VOLTAGE (V)

(Approx.)

1

G/Y

Auto trunk control unit

When trunk opener is operated using elec-
tronic key. (OFF 

→

 ON)

5 

→

 0

7

W/L

Combination flasher unit

Door locking with electronic key (Twice)

Door unlocking with electronic key (Once)

17

BR/Y

Data line RX

—

—

18

P

Data line TX

—

—

27

BR/W

Remote key less entry 
receiver
(Pulse)

Stand-by

Press any of electronic key switches

28

L

Remote keyless entry 
receiver
(Power supply)

Stand-by

Press any of electronic key switches

30

PU

IIU TX

—

—

31

LG

IIU RX

—

—

33

W

Door switch rear LH

Door close (OFF) 

→

 Door open (ON)

Battery voltage 

→

 0

37

W/G

Front door switch passenger 
side

Door close (OFF) 

→

 Door open (ON)

Battery voltage 

→

 0

PIIA2487J

PIIA2486J

OCC3879D

OCC3880D

OCC3881D

OCC3882D

BL-68

REMOTE KEYLESS ENTRY SYSTEM

Terminal and Reference Value for Driver Door Control Unit (LCU01)

EIS0028H

Terminal and Reference Value for Passenger And Rear LH, RH Door Control 
Unit

EIS0028I

44

Y

Remote keyless entry 
receiver
(Ground)

—

0

56

B

Ground

—

0

60

L/OR

ACC power supply

Ignition switch ACC or  ON position

Battery voltage

67

G/W

Data line A-3

—

—

69

PU/W

Key switch

Key Inserted in IGN key cylinder (ON) 

→

key removed from IGN key cylinder (OFF)

Battery voltage 

→

 0

105

Y/L

Battery power supply

—

Battery voltage

109

LG

Trunk lid opener cancel 
switch

Trunk lid opener cancel switch ON 

→

 OFF

Battery voltage 

→

 0

113

B

Ground

—

0

127

G/W

Horn relay

When panic alarm is operated using elec-
tronic key. (OFF

→

 ON)

Battery voltage 

→

 0

142

W/R

Front door switch driver side

Door close (OFF) 

→

 Door open (ON)

Battery voltage 

→

 0

143

W/L

Door switch rear RH

Door close (OFF) 

→

 Door open (ON)

Battery voltage 

→

 0

TER-

MINAL

WIRE 

COLOR

ITEM

CONDITION

VOLTAGE (V)

(Approx.)

TERMI-

NAL

WIRE 

COLOR

ITEM

CONDITION

VOLTAGE (V)

(Approx.)

5

G/OR

Local data line

—

6

G/Y

Door unlock sensor

OFF (Locked) 

→

 ON (Unlocked)

5 

→

 0

8

G/W

Data line A-3

—

—

12

BR

Driver door lock actuator
(Unlock)

Door lock & unlock switch 
(Free 

→

 Unlock)

0 

→

 Battery voltage

14

Y/G

Power source (C/B)

—

Battery voltage

15

B

Ground

—

0

17

LG

Driver door lock actuator
(Lock)

Door lock & unlock switch 
(Free 

→

 Lock)

0 

→

 Battery voltage

SIIA0591J

TERMI-

NAL

WIRE 

COLOR

ITEM

CONDITION

VOLTAGE (V)

(Approx.)

*2

SB

Door lock actuator (Lock)

Door lock & unlock switch 
(Free 

→

 Lock)

0 

→

 Battery voltage

*3

BR

Door lock actuator (Unlock)

Door lock & unlock switch 
(Free 

→

 Unlock)

0 

→

 Battery voltage

6

W/R

(Y/B)

Power source (C/B)

—

Battery voltage

7

B

Ground

—

0

REMOTE KEYLESS ENTRY SYSTEM

BL-69

C

D

E

F

G

H

J

K

L

M

A

B

BL

NOTE:
*Only for passenger door control unit.
(): Wire color for rear LH, RH door control unit.

Work Flow

EIS0028J

1.

Check the symptom and customer's requests.

2.

Understand the outline of system. Refer to 

BL-53, "System Description"

 .

3.

Perform the preliminary check. Refer to 

BL-70, "Preliminary Check"

 .

4.

Perform the communication inspection. If CONSULT-II is used, refer to 

BL-73, "IVMS COMMUNICATION

INSPECTION"

 . If CONSULT-II is not used, refer to

BL-77, "COMMUNICATION DIAGNOSIS"

 . Is the com-

munication diagnosis result OK?
OK: GO TO step 7.
NG: GO TO step 5.

5.

Repair or replace depending on the diagnosis result.

6.

Perform the communication diagnosis again. If CONSULT-II is used, refer to 

BL-73, "IVMS COMMUNICA-

TION INSPECTION"

 . If CONSULT-II is not used, refer to 

BL-77, "COMMUNICATION DIAGNOSIS"

 . Is

communication diagnosis result OK?
OK: GO TO step 7.
NG: GO TO step 5.

7.

Referring to Trouble diagnosis chart, repair or replace the cause of the incident. Refer to 

BL-80, "Trouble

Diagnosis Chart by Symptom"

 .

8.

Does the remote keyless entry system operate normally?
YES: GO TO step 9.
NO: GO TO step 7.

9.

Inspection end.

11

G/OR

Local communication line

—

13

G/Y

Door unlock sensor

OFF (Locked) 

→

 ON (Unlocked)

5V 

→

 0V

TERMI-

NAL

WIRE 

COLOR

ITEM

CONDITION

VOLTAGE (V)

(Approx.)

SIIA0591J

BL-70

REMOTE KEYLESS ENTRY SYSTEM

Preliminary Check

EIS0028K

POWER SUPPLY AND GROUND CIRCUIT INSPECTION

1. 

FUSE INSPECTION

Check if any of the following fuses are blown.

Refer to 

BL-57, "Wiring Diagram – KEYLES –"

 .

Refer to 

BL-57, "Wiring Diagram – KEYLES –"

 .

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"

 .

2. 

POWER SUPPLY CIRCUIT INSPECTION

Remove the connectors for BCM and driver door LCU or passenger,
rear LH, RH door control units, check the voltage between the follow-
ing terminals of connectors and ground.

OK or NG

OK

>> GO TO 3.

NG

>> Check harness for open or short.

Unit

Power source

Fuse No.

BCM

Battery power supply

3 (10A)

ACC power supply

21 (10A)

Unit

Power source

Fusible link location

Driver door control unit
Passenger door control unit
Rear LH door control unit
Rear RH door control unit

Battery power supply

H (40A)

Unit

Terminals

(wire color)

Ignition

switch

condition

Voltage (V)

Approx.

Connector

(+)

(–)

BCM (M4)

105 (Y/L)

Ground

OFF

Battery voltage

60 (L/OR)

ACC or ON

Driver door control unit 
(D8)

14 (Y/G)

OFF

Passenger door control 
unit (D38)

6 (W/R)

OFF

Rear LH door control unit 
(D58)

6 (Y/B)

Rear RH door control 
unit (D78)

6 (Y/B)

PIIA6422E