Infiniti M35/M45 Y50. Manual - part 888

HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYSTEM -

LT-97

C

D

E

F

G

H

I

J

L

M

A

B

LT

Daytime Light Control Does Not Operate Properly (Normal Headlamps Operate 
Properly)

NKS003PK

1. 

DAYTIME LIGHT ACTIVE TEST

With CONSULT-II

1.

Select “BCM” on CONSULT-II, and select “HEAD LAMP” on
“SELECT TEST ITEM” screen.

2.

Select “ACTIVE TEST” on “SELECT DIAG MODE” screen. 

3.

Select “DAYTIME RUNNING LIGHT” on “SELECT TEST ITEM”
screen.

4.

Touch “ON” screen.

5.

Make sure daytime light operation.

OK or NG

OK

>> GO TO 2.

NG

>> GO TO 4.

2. 

CHECK INPUT SIGNAL

1.

Select “BCM” on CONSULT-II. With “HEAD LAMP” data monitor,
make sure “ENGINE RUN” turns ON-OFF linked with operation
of engine running or stop.

2.

Select “BCM” on CONSULT-II. With “HEAD LAMP” data monitor,
make sure “PKB SW” turns ON-OFF linked with operation of
parking brake switch.

OK or NG

OK

>> GO TO 3.

NG

>> Check BCM CAN communication system. Refer to 

BCS-13, "CAN Communication Inspection

Using CONSULT-II (Self-Diagnosis)"

 .

3. 

CHECK INPUT SIGNAL

1.

Start engine and release parking brake. Headlamp switch OFF.

2.

Select “IPDM E/R” on CONSULT-II. With data monitor, make
sure “DTRL REQ” turns ON-OFF linked with operation of park-
ing brake switch.

OK or NG

OK

>> Replace IPDM E/R. Refer to 

PG-31, "Removal and

Installation of IPDM E/R"

 .

NG

>> Replace BCM. Refer to 

BCS-15, "Removal and Installa-

tion of BCM"

 .

Daytime light should operate.

PKIC0442E

Engine running

: ENGINE RUN ON

Engine stop

: ENGINE RUN OFF

Parking brake ON

: PKB SW ON

Parking brake OFF

: PKB SW OFF

PKIA7591E

Parking brake ON

: DTRL REQ ON

Parking brake OFF

: DTRL REQ OFF

SKIB4913E

LT-98

HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYSTEM -

4. 

CHECK DAYTIME LIGHT RELAY POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Remove daytime light relay.

3.

Check voltage between daytime light relay harness connector
and ground.

OK or NG

OK

>> GO TO 5.

NG

>> Repair harness or connector.

5. 

CHECK DAYTIME LIGHT RELAY

Check continuity between daytime light relay terminals.

OK or NG

OK

>> GO TO 6.

NG

>>  Replace daytime light relay.

6. 

CHECK CIRCUIT BETWEEN DAYTIME LIGHT RELAY AND IPDM E/R

1.

Disconnect IPDM E/R connector.

2.

Check continuity between IPDM E/R harness connector (A) and
daytime light relay harness connector (B).

OK or NG

OK

>> GO TO 7.

NG

>> Repair harness or connector.

Terminals

Voltage 

(Approx.)

(+)

(-)

Daytime light relay connector

Terminal

E34

2

Ground

Battery voltage

5

SKIB4746E

Daytime light relay 

terminals

Condition

Continuity

3

5

Applying battery voltage to between daytime 
light relay terminals 1 and 2

Yes

No battery voltage

No

SKIB4671E

A

B

Continuity

Connector

Terminal

Connector

Terminal

E9

58

E34

1

Yes

SKIB4748E

HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYSTEM -

LT-99

C

D

E

F

G

H

I

J

L

M

A

B

LT

7. 

CHECK DAYTIME LIGHT RELAY SIGNAL

1.

Connect IPDM E/R connector.

2.

Install daytime light relay.

3.

Turn ignition switch ON.

4.

Applied parking brake.

5.

Check voltage between IPDM E/R harness connector and
ground.

6.

Start engine and release parking break. Headlamp switch OFF.

7.

Check voltage between IPDM E/R harness connector and
ground.

OK or NG

OK

>> Check connecting condition daytime light relay harness connector.

NG

>> GO TO 8.

8. 

CHECK CAN COMMUNICATIONS

Select “BCM” by CONSULT-II, and perform self-diagnosis for “BCM”.

Displayed self-diagnosis results

NO DTC>>Replace BCM. Refer to 

BCS-15, "Removal and Installa-

tion of BCM"

 .

CAN COMM CIRCUIT>>Check BCM CAN communication system.

Refer to 

BCS-13, "CAN Communication Inspection

Using CONSULT-II (Self-Diagnosis)"

 .

Terminals

Voltage 

(Approx.)

(+)

(-)

IPDM E/R connector

Terminal

E9

58

Ground

Battery voltage

Terminals

Voltage 

(Approx.)

(+)

(-)

IPDM E/R connector

Terminal

E9

58

Ground

0 V

SKIB4747E

PKIA7627E

LT-100

HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYSTEM -

Headlamp High Beam Does Not Illuminate (Both Sides)

NKS003PL

1. 

CHECK COMBINATION SWITCH INPUT SIGNAL 

With CONSULT-II

Select “BCM” on CONSULT-II, With “HEAD LAMP” data monitor,
make sure “HI BEAM SW” turns ON-OFF linked with operation of
lighting switch.

Without CONSULT-II

Refer to 

LT-239, "Combination Switch Inspection"

 .

OK or NG

OK

>> GO TO 2.

NG

>> Check combination switch (lighting switch). Refer to 

LT-

239, "Combination Switch Inspection"

 .

2. 

HEADLAMP ACTIVE TEST

With CONSULT-II

1.

Select “IPDM E/R” on CONSULT-II, and select “ACTIVE TEST”
on “SELECT DIAG MODE” screen.

2.

Select “LAMPS” on “SELECT TEST ITEM” screen. 

3.

Touch “HI” screen.

4.

Make sure headlamp high beam operation.

Without CONSULT-II

1.

Start auto active test. Refer to 

PG-23, "Auto Active Test"

 .

2.

Make sure headlamp high beam operation.

OK or NG

OK

>> GO TO 3.

NG

>> GO TO 4.

3. 

CHECK IPDM E/R

1.

Select “IPDM E/R” on CONSULT-II, and select “DATA MONI-
TOR” on “SELECT DIAG MODE” screen.

2.

Make sure “HL LO REQ” and “HL HI REQ” turns ON when light-
ing switch is in HIGH BEAM position.

OK or NG

OK

>> Replace IPDM E/R. Refer to 

PG-31, "Removal and

Installation of IPDM E/R"

 .

NG

>> Replace BCM. Refer to 

BCS-15, "Removal and Installa-

tion of BCM"

 .

When lighting switch is 
HIGH BEAM position

: HI BEAM SW ON

PKIA6324E

Headlamp high beam should operate
(Headlamp high beam repeats ON-OFF every 1 second).

Headlamp high beam should operate.

SKIA5774E

When lighting switch is 
HIGH BEAM position

: HL LO REQ ON
: HL HI REQ ON 

SKIA5775E