Nissan Maxima. Manual - part 608

EXL-174

< SYSTEM DESCRIPTION >

[HALOGEN TYPE]

HEADLAMP

SYSTEM DESCRIPTION

HEADLAMP

System Diagram

INFOID:0000000010051021

System Description

INFOID:0000000010051022

Control of the headlamp system operation is dependent upon the position of the combination switch (lighting

and turn signal switch). When the lighting switch is placed in the 2nd position, the BCM (body control module)

receives input requesting the headlamps and park lamps to illuminate. This input is communicated to the

IPDM E/R (intelligent power distribution module engine room) across the CAN communication lines. The CPU

(central processing unit) of the IPDM E/R controls the headlamp high and headlamp low relay coils. When

energized, these relays direct power to the respective headlamps, which then illuminate. 

Component Parts Location

INFOID:0000000010051023

ABLIA2706GB

AWLIA1631ZZ

HEADLAMP

EXL-175

< SYSTEM DESCRIPTION >

[HALOGEN TYPE]

C

D

E

F

G

H

I

J

K

M

A

B

EXL

N

O

P

Component Description

INFOID:0000000010051024

LOW BEAM OPERATION

When the lighting switch is in 2ND position, the BCM receives input requesting the headlamps to illuminate.

This input is communicated to the IPDM E/R across the CAN communication lines. The CPU of the IPDM E/R

controls the headlamp low relay coil which supplies power to the low beam headlamps. 

HIGH BEAM OPERATION/FLASH-TO-PASS OPERATION

With the lighting switch in the 2ND position and placed in HIGH position, the BCM receives input requesting

the headlamp high beams to illuminate. The flash-to-pass feature can be used any time and also sends a sig-

nal to the BCM. This input is communicated to the IPDM E/R across the CAN communication lines. The CPU

of the combination meter controls the ON/OFF status off the HIGH BEAM indicator. The CPU of the IPDM E/R

controls the headlamp high relay coil which supplies power to the high beam headlamps.

The combination meter receives a high beam request signal (ON) through the CAN communication lines and

turns the high beam indicator lamp ON.

EXTERIOR LAMP BATTERY SAVER CONTROL

With the lighting switch (combination switch) in the 2nd position and the ignition switch is turned from ON or

ACC to OFF, the battery saver feature is activated.

Under this condition, the headlamps remain illuminated for 5 minutes unless the lighting switch position is

changed.  If the lighting switch position is changed, then the headlamps are turned off. 

This setting can be changed by CONSULT. Refer to 

EXL-193, "BATTERY SAVER : CONSULT Function (BCM

- BATTERY SAVER)"

.

1.

IPDM E/R E17, E18, E200

2.

BCM M16, M17, M18, M19 (view with 
combination meter removed)

3.

Combination switch (lighting and turn 
signal switch) M28

4.

Combination meter M24

EXL-176

< SYSTEM DESCRIPTION >

[HALOGEN TYPE]

DAYTIME RUNNING LIGHT SYSTEM

DAYTIME RUNNING LIGHT SYSTEM

System Diagram

INFOID:0000000010051025

System Description

INFOID:0000000010051026

The headlamp system for Canada vehicles is equipped with a daytime light relay that activates the high beam

headlamps at approximately half illumination whenever the engine is running. If the parking brake is

depressed before the engine is started, the daytime lights will not be illuminated. The daytime lights will illumi-

nate once the parking brake is released. Thereafter, the daytime lights will continue to operate when the park-

ing brake is depressed.

Component Parts Location

INFOID:0000000010051027

ABLIA2702GB

1.

IPDM E/R E17, E18, E200, E201

2.

BCM M16,M17, M18, M19 (view with 
combination meter removed)

3.

Combination switch (lighting and turn 
signal switch) M28

4.

Combination meter M24

5.

Parking brake switch E35

6.

Daytime light relay E228

AWLIA1632ZZ

DAYTIME RUNNING LIGHT SYSTEM

EXL-177

< SYSTEM DESCRIPTION >

[HALOGEN TYPE]

C

D

E

F

G

H

I

J

K

M

A

B

EXL

N

O

P

Component Description

INFOID:0000000010051028

After starting the engine with the parking brake released and the lighting switch in the OFF or 1ST position, the

headlamp high beam automatically turns on. With the lighting switch in the 2nd position or with autolamps ON,

the headlamps function the same as conventional light systems.

OPERATION

The BCM monitors inputs from the parking brake switch and the combination switch (lighting and turn signal

switch) to determine when to activate the daytime light system. The BCM sends a daytime light request to the

IPDM E/R via the CAN communication lines. The IPDM E/R grounds the daytime light relay which in turn, pro-

vides power to the ground side of the RH high beam lamp. Power flows backward through the RH high beam

lamp to the IPDM E/R, through the high beam fuses, through the LH high beam lamp circuit to the LH high

beam lamp and on to ground. The high beam lamps are wired in series which causes them to illuminate at a

reduced intensity. 

• Hi: "HIGH BEAM" position
• Lo: "LOW BEAM" position
• P: "FLASH TO PASS" position
•

×: Lamp "ON"

• –: Lamp "OFF"
• z: Lamp dims. (Added functions)
• *: When starting the engine with the parking brake released, the daytime lights will operate.

When starting the engine with the parking brake depressed, the daytime lights will not operate.

Engine 

With engine stopped 

With engine running 

Lighting switch 

OFF 1ST 2ND OFF 1ST 2ND 

Hi

Lo

P

Hi

Lo

P

Hi

Lo

P

Hi

Lo

P

Hi

Lo

P

Hi

Lo

P

Headlamp 

High  beam 

–

–

–

–

–

×

×

–

×

z

*

z

*

×

z

*

z

*

×

×

–

×

Low  beam 

–

–

–

–

–

×

×

×

×

–

–

×

–

–

×

×

×

×

Tail lamp 

–

–

–

×

×

×

×

×

×

–

–

–

×

×

×

×

×

×

License and instrument illumina-
tion lamp 

–

–

–

×

×

×

×

×

×

–

–

–

×

×

×

×

×

×