Infiniti Q45. Manual - part 200

REMOTE KEYLESS ENTRY SYSTEM

BL-69

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

NIS000UI

33

W

Door switch rear LH

Input

Door close (OFF) 

→

 Door open 

(ON)

Battery voltage 

→

 0

37

W/G

Front door switch passenger 
side

Input

Door close (OFF) 

→

 Door open 

(ON)

Battery voltage 

→

 0

44

Y

Remote keyless entry 
receiver
(Ground)

—

—

0

56

B

Ground

—

—

0

60

L/OR

Ignition switch (ACC)

Input

Ignition switch (ACC or ON position)

Battery voltage

67

G/W

Data line A-3

Input/

output

—

—

69

PU/W

Key switch

Input

Key Inserted in IGN key cylinder 
(ON) 

→

key removed from IGN key cylinder 
(OFF)

Battery voltage 

→

 0

105

Y/L

Power source (Fuse)

Input

—

Battery voltage

109

LG

Trunk lid opener cancel 
switch

Input

Trunk lid opener cancel switch ON 

→

 OFF

Battery voltage 

→

 0

113

B

Ground

—

—

0

127

G/W

Horn relay

Input

When panic alarm is operated using 
electronic key. (OFF

→

 ON)

Battery voltage 

→

 0

142

W/R

Front door switch driver side

Input

Door close (OFF) 

→

 Door open 

(ON)

Battery voltage 

→

 0

143

W/L

Door switch rear RH

Input

Door close (OFF) 

→

 Door open 

(ON)

Battery voltage 

→

 0

TER-

MINAL

WIRE 

COLOR

ITEM

Signal 

input/

output

CONDITION

VOLTAGE (V)

(Approx.)

TER-

MINAL

WIRE 

COLOR

ITEM

Siganal 

input/

output

CONDITION

VOLTAGE (V)

(Approx.)

5

G/OR

Local data line

Input

—

6

G/Y

Door unlock sensor

Input

OFF (Locked) 

→

 ON (Unlocked)

5 

→

 0

8

G/W

Data line A-3

Input/

output

—

—

12

BR

Driver door lock actuator
(Unlock)

Output

Door lock & unlock switch 
(Free 

→

 Unlock)

0 

→

 Battery voltage 

→

 0

14

Y/G

Power source (C/B)

Input

—

Battery voltage

15

B

Ground

—

—

0

17

LG

Driver door lock actuator
(Lock)

Output

Door lock & unlock switch 
(Free 

→

 Lock)

0 

→

 Battery voltage 

→

 0

SIIA0591J

BL-70

REMOTE KEYLESS ENTRY SYSTEM

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

NIS000UJ

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

Work Flow

NIS000UK

1.

Check the symptom and customer's requests.

2.

Understand the outline of system. Refer to 

BL-54, "System Description"

 .

3.

Perform the preliminary check. Refer to 

BL-71, "Preliminary Check"

 .

4.

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

BL-75, "IVMS COMMUNICATION

INSPECTION"

 . If CONSULT-II is not used, refer to

BL-79, "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-75, "IVMS COMMUNICA-

TION INSPECTION"

 . If CONSULT-II is not used, refer to 

BL-79, "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-83, "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.

TERMI-

NAL

WIRE 

COLOR

ITEM

Signal 

input/

output

CONDITION

VOLTAGE (V)

(Approx.)

*2

SB

Door lock actuator (Lock)

Output

Door lock & unlock switch 
(Free 

→

 Lock)

0 

→

 Battery voltage 

→

 0

*3

BR

Door lock actuator (Unlock)

Output

Door lock & unlock switch 
(Free 

→

 Unlock)

0 

→

 Battery voltage 

→

 0

6

W/R

(Y/B)

Power source (C/B)

Input

—

Battery voltage

7

B

Ground

—

—

0

11

G/OR

Local communication line

Input/

output

—

13

G/Y

Door unlock sensor

Input

OFF (Locked) 

→

 ON (Unlocked)

5V 

→

 0V

SIIA0591J

REMOTE KEYLESS ENTRY SYSTEM

BL-71

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Preliminary Check

NIS000UL

POWER SUPPLY AND GROUND CIRCUIT INSPECTION

1. 

FUSE INSPECTION

Check if any of the following fuses are blown.

Refer to 

BL-58, "Wiring Diagram — KEYLES —"

 .

Refer to 

BL-58, "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"

 .

Unit

Power source

Fuse No.

BCM

Battery power supply

3 (10A)

ACC power supply

21 (10A)

Unit

Power source

Fusible link letter

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

Battery power supply

H (40A)

BL-72

REMOTE KEYLESS ENTRY SYSTEM

2. 

POWER SUPPLY CIRCUIT INSPECTION

1.

Disconnect BCM connector and river door LCU or passenger, rear LH, RH door control units.

2.

Check voltage between following connectors and ground.

OK or NG

OK

>> GO TO 3.

NG

>> Check harness for open or short.

Unit (Connector)

Terminals

(wire color)

Ignition

switch

condition

Voltage (V)

(Approx.)

(+)

(–)

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