Infiniti M45 (Y34). Manual - part 631

HEADLAMP (FOR USA)

LT-31

C

D

E

F

G

H

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A

B

LT

High Beam Indicator Circuit Inspection

AKS003SC

1. 

CHECK HIGH BEAM INDICATOR POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Remove headlamp relay-2 and disconnect combination meter
connector.

3.

Check continuity between combination meter harness connector
M41 terminal 9 (W/G) and headlamp relay-2 harness connector
E5 terminal 5 (W/G).

4.

Check continuity between combination meter harness connector
M41 terminal 9 (W/G) and ground.

OK or NG

OK

>> GO TO 2.

NG

>> Repair harness or connector.

2. 

CHECK HIGH BEAM INDICATOR GROUND CIRCUIT

1.

Disconnect lighting switch connector.

2.

Check continuity between combination meter harness connector
M41 terminal 10 (L/R) and lighting switch harness connector
M55 terminal 9 (L/R).

3.

Check continuity between combination meter harness connector
M41 terminal 10 (L/R) and ground.

OK or NG

OK

>> INSPECTION END

NG

>> Repair harness or connector.

Lighting Switch Circuit Inspection 

AKS003S4

1. 

CHECK LIGHTING SWITCH

Check continuity of lighting switch. Refer to 

LT-102, "Switch Circuit Inspection"

 .

OK or NG

OK

>> GO TO 2.

NG

>> Replace lighting switch.

9 (W/G) - 5 (W/G)

: Continuity should exist.

9 (W/G) - Ground

: Continuity should not exist.

PKIA5856E

10 (L/R) - 9 (L/R)

: Continuity should exist.

10 (L/R) - Ground

: Continuity should not exist.

PKIA5857E

LT-32

HEADLAMP (FOR USA)

2. 

CHECK LIGHTING SWITCH POWER SUPPLY CIRCUIT 1

1.

Turn ignition switch OFF.

2.

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

3.

Check continuity between headlamp battery saver control unit
harness connector M33 terminal 3 (R/B) and lighting switch har-
ness connector M55 terminal 12 (R/B).

4.

Check continuity between headlamp battery saver control unit
harness connector M33 terminal 3 (R/B) and ground.

OK or NG

OK

>> GO TO 3.

NG

>> Repair harness or connector.

3. 

CHECK LIGHTING SWITCH POWER SUPPLY CIRCUIT 2

1.

Check continuity between headlamp battery saver control unit
harness connector M34 terminal 9 (R/B) and lighting switch har-
ness connector M55 terminal 12 (R/B).

2.

Check continuity between headlamp battery saver control unit
harness connector M34 terminal 9 (R/B) and ground.

OK or NG

OK

>> GO TO 4.

NG

>> Repair harness or connector.

4. 

CHECK LIGHTING SWITCH GROUND CIRCUIT

Check continuity between lighting switch harness connector M55 ter-
minal 8 (B) and ground.

OK or NG

OK

>> INSPECTION END

NG

>> Repair harness or connector.

3 (R/B) - 12 (R/B)

: Continuity should exist.

3 (R/B) - Ground

: Continuity should not exist.

PKIA5858E

9 (R/B) - 12 (R/B)

: Continuity should exist.

9 (R/B) - Ground

: Continuity should not exist.

PKIA5859E

8 (B) - Ground

: Continuity should exist.

PKIA5860E

HEADLAMP (FOR USA)

LT-33

C

D

E

F

G

H

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B

LT

Front Door Switch Circuit Inspection

AKS003S5

1. 

CHECK DOOR SWITCH SIGNAL

With CONSULT-II

1.

Select “INTERIOR ILLUMINATION” of “IVMS” on “SELECT
SYSTEM” screen. 

2.

Operate each door via “DOOR SW-DR” and “DOOR SW-AS” on
“DATA MONITOR” screen and make sure that the switch turns
on and off as commanded.

Without CONSULT-II

●

Open and close the front door (driver side, passenger side) and
make sure that the switch turns on and off by “switch monitor” in
the self-diagnosis function.

OK or NG

OK

>> INSPECTION END

NG

>>

●

When front door switch (driver side) is malfunction, go to 2.

●

When front door switch (passenger side) is malfunction, go to 4.

2. 

CHECK FRONT DOOR SWITCH (DRIVER SIDE) CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect BCM connector and front door switch (driver side)
connector.

3.

Check continuity between BCM harness connector B4 terminal
142 (R/Y) and front door switch (driver side) harness connector
B20 terminal 1 (R/Y).

4.

Check continuity between BCM harness connector B4 terminal
142 (R/Y) and ground.

OK or NG

OK

>> GO TO 3.

NG

>> Repair harness or connector.

3. 

CHECK FRONT DOOR SWITCH (DRIVER SIDE)

Check front door switch (driver side).

OK or NG

OK

>> Replace BCM.

NG

>> Replace front door switch (driver side).

SKIA3814E

142 (R/Y) - 1 (R/Y)

: Continuity should exist.

142 (R/Y) - Ground

: Continuity should not exist.

PKIA5861E

Switch released (ON)

: Continuity should exist.

Switch pressed (OFF)

: Continuity should not exist.

LT-34

HEADLAMP (FOR USA)

4. 

CHECK FRONT DOOR SWITCH (PASSENGER SIDE) CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect BCM connector and front door switch (passenger
side) connector.

3.

Check continuity between BCM harness connector M4 terminal
37 (LG) and front door switch (passenger side) harness connec-
tor B220 terminal 1 (LG).

4.

Check continuity between BCM harness connector M4 terminal
37 (LG) and ground.

OK or NG

OK

>> GO TO 5.

NG

>> Repair harness or connector.

5. 

CHECK FRONT DOOR SWITCH (PASSENGER SIDE)

Check continuity front door switch (passenger side).

OK or NG

OK

>> Replace BCM.

NG

>> Replace front door switch (passenger side).

Headlamp Battery Saver Control Unit Circuit Inspection

AKS003S6

1. 

CHECK RAP SIGNAL

1.

Turn ignition switch OFF.

2.

Disconnect battery saver control unit connector.

3.

Turn ignition switch ON.

4.

Check voltage between headlamp battery saver control unit har-
ness connector M34 terminal 10 (Y/R) and ground after turning
off the ignition switch.

OK or NG

OK

>> INSPECTION END

NG

>> GO TO 2.

37 (LG) - 1 (LG)

: Continuity should exist.

37 (LG) - Ground

: Continuity should not exist.

PKIA5863E

Switch released (ON)

: Continuity should exist.

Switch pressed (OFF)

: Continuity should not exist.

Connector

Terminal 

(Wire color)

Condition

Voltage

M34

10 (Y/R)

Within 45 seconds after ignition 
switch is turned off

Approx. 0V

Front door is opened or more than 
45 seconds after ignition switch is 
turned off

Battery voltage

PKIA5865E