Infiniti M45 (Y34). Manual - part 652

PARKING, LICENSE PLATE AND TAIL LAMPS

LT-115

C

D

E

F

G

H

I

J

L

M

A

B

LT

TKWA0540E

LT-116

PARKING, LICENSE PLATE AND TAIL LAMPS

Terminals and Reference Value for Headlamp Battery Saver Control Unit

AKS003ZH

Terminals and Reference Value for BCM

AKS003ZI

CONSULT-II Function

AKS003ZJ

Refer to 

LT-20, "CONSULT-II Function for Auto Light System"

  in HEADLAMP (FOR USA).

Terminal 

No.

Wire 

color

Item

Operation or condition

Reference value

1

W/B

Ignition switch ON or 
START

Ignition switch

OFF or ACC

Approx. 0V

ON or START

Battery voltage

4

B

Ground

—

Approx. 0V

5

L

Tail lamp switch 1

lighting switch

OFF

Battery voltage

1ST or 2ND

Approx. 0V

6

LG/B

Tail lamp relay 1

Ignition switch
(with lighting 
switch 1ST or 
2ND)

OFF 

or 

ACC

More than 45 seconds after ignition 
switch is turned OFF or ACC

Battery voltage

Within 45 seconds after ignition switch 
is turned OFF or ACC

Approx. 0V

ON or START

Approx. 0V

Headlamps illuminate by auto light control. 

Approx. 0V

7

Y/G

Battery power supply

—

Battery voltage

10

Y/R

RAP input signal

Ignition switch

OFF or ACC (After more than 45 seconds with 
ignition switch turned OFF or ACC)

Battery voltage

ON or START

Approx. 0V

11

B

Ground

—

Approx. 0V

13

L

Tail lamp switch 2

Lighting switch

OFF

Battery voltage

1ST or 2ND

Approx. 0V

14

LG/B

Tail lamp relay 2

Ignition switch
(with lighting 
switch 1ST or 
2ND)

OFF

or 

ACC

More than 45 seconds after ignition 
switch is turned OFF or ACC

Battery voltage

Within 45 seconds after ignition switch 
is turned OFF or ACC

Approx. 0V

ON or START

Approx. 0V

Headlamps illuminate by auto light control.

Approx. 0V

Terminal 

No.

Wire 

color

Item

Measuring condition

Reference value

Ignition 

switch

Operation or condition

11

LG/B

Tail lamp relay control signal

ON

Lighting switch: 
AUTO

Light is applied to optical 
sensor.

Battery voltage

Light is not applied to optical 
sensor.

Approx. 0V

14

Y/L

Lighting switch (AUTO) signal

ON

Lighting switch

AUTO

Approx. 0V

OFF

8V or more

37

LG

Front door switch (passenger 
side) signal

OFF

Front door switch 
(passenger side)

ON (open)

Approx. 0V

OFF (close)

Battery voltage

135

Y/G

RAP output signal

OFF

When headlamp battery saver timer is operated

Approx. 0V

142

R/Y

Front door switch (driver side) 
signal

OFF

Front door switch 
(driver side)

ON (open)

Approx. 0V

OFF (close)

Battery voltage

PARKING, LICENSE PLATE AND TAIL LAMPS

LT-117

C

D

E

F

G

H

I

J

L

M

A

B

LT

No Lamps Operate (Including Headlamps)

AKS003Y6

1. 

CHECK FUSE

Check for blown headlamp battery saver control unit fuse.

Refer to 

LT-111, "Wiring Diagram — TAIL/L —"

 .

OK or NG

OK

>> GO TO 2.

NG

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

2. 

CHECK HEADLAMP BATTERY SAVER CONTROL UNIT POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect headlamp battery saver control unit connector.

3.

Check voltage between headlamp battery saver control unit har-
ness connector M34 terminal 7 (Y/G) and ground.

OK or NG

OK

>> GO TO 3.

NG

>> Check harness for open or short headlamp battery

saver control unit and fuse.

3. 

CHECK HEADLAMP BATTERY SAVER CONTROL UNIT GROUND CIRCUIT

Check continuity between headlamp battery saver control unit har-
ness connector terminals and ground.

OK or NG

OK

>> GO TO 4.

NG

>> Repair harness.

4. 

CHECK LIGHTING SWITCH

Check continuity of lighting switch. Refer to 

LT-102, "Switch Circuit Inspection"

 .

OK or NG

OK

>> GO TO 5.

NG

>> Replace lighting switch.

Unit

Power source

Fuse No.

Headlamp battery saver control unit

Ignition switch ON or START position

1

Battery

6

7 (Y/G) - Ground 

: Battery voltage should exist.

PKIA5931E

Terminals

Continuity

Connector

Terminal (Wire color)

M33

4 (B)

Ground

Yes

M34

11 (B) 

PKIA5932E

LT-118

PARKING, LICENSE PLATE AND TAIL LAMPS

5. 

CHECK LIGHTING SWITCH POWER SUPPLY CIRCUIT 1

1.

Disconnect headlamp battery saver control unit connector and
lighting switch connector.

2.

Check continuity between headlamp battery saver control unit
harness connector M33 terminal 5 (L) and lighting switch har-
ness connector M55 terminal 11 (L).

3.

Check continuity between headlamp battery saver control unit
harness connector M33 terminal 5 (L) and ground.

OK or NG

OK

>> GO TO 6.

NG

>> Repair harness or connector.

6. 

CHECK LIGHTING SWITCH POWER SUPPLY CIRCUIT 2

1.

Check continuity between headlamp battery saver control unit
harness connector M34 terminal 13 (L) and lighting switch har-
ness connector M55 terminal 11 (L).

2.

Check continuity between headlamp battery saver control unit
harness connector M34 terminal 13 (L) and ground.

OK or NG

OK

>> GO TO 7.

NG

>> Repair harness or connector.

7. 

CHECK LIGHTING SWITCH GROUND CIRCUIT

Check continuity between lighting switch harness connector M55 ter-
minal 5 (B) and ground.

OK or NG

OK

>> Replace headlamp battery saver control unit.

NG

>> Repair harness.

No Parking, Side Marker, License and Tail Lamps Operate Properly 

AKS003Y7

1. 

CHECK FUSE

Check for blown tail lamp relay fuse.

Refer to 

LT-111, "Wiring Diagram — TAIL/L —"

 .

OK or NG

OK

>> GO TO 2.

NG

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

5 (L) - 11 (L)

: Continuity should exist.

5 (L) - Ground

: Continuity should not exist.

PKIA5933E

13 (L) - 11 (L)

: Continuity should exist.

13 (L) - Ground

: Continuity should not exist.

PKIA5934E

5 (B) - Ground

: Continuity should exist.

PKIA5935E

Relay

Power source

Fuse No.

Tail lamp relay

Battery

54