Nissan Titan A60. Manual - part 646

DIAGNOSIS AND REPAIR WORKFLOW

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< BASIC INSPECTION >

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>> GO TO 11

11.

REPAIR CHECK (OPERATION CHECK)

Check the operation of each part.
Does it operate normally?

YES

>> Inspection End

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>> GO TO 3

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< SYSTEM DESCRIPTION >

INTERIOR ROOM LAMP CONTROL SYSTEM

SYSTEM DESCRIPTION

INTERIOR ROOM LAMP CONTROL SYSTEM

System Diagram

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System Description

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OUTLINE

• Interior room lamps* are controlled by the interior room lamp timer control function of the BCM. 

*Room lamp (if equipped), Front room/map lamp assembly (if equipped), personal lamp 2nd row (if

equipped) and puddle lamps (if equipped).

• Cargo lamp and tailgate cargo lamps (if equipped) are controlled by the cargo lamp control function of the

BCM.

• Step lamps* are controlled by the step lamp control function of the BCM.

*Front step lamps and foot lamps (if equipped).

The timer control functions of the BCM activate based on inputs from the remote keyless entry receiver, the

door switches, the key switch (column shift), the key switch and key lock solenoid (key switch) (floor shift) or

the cargo lamp switch (if equipped). 

ROOM LAMP TIMER OPERATION

When the interior room lamp switch is in the DOOR position and when all conditions below are met, the BCM

begins timer control (maximum 30 seconds) for interior room lamp ON/OFF.

AWLIA1591GB

INTERIOR ROOM LAMP CONTROL SYSTEM

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< SYSTEM DESCRIPTION >

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• When the front door LH is unlocked [with the main power window and door lock/unlock switch, front door

lock assembly (key cylinder switch)].

• When the front door LH is unlocked with the remote keyless entry system (if equipped).

• When a door opens 

→ closes and the key is not inserted in the ignition slot.

Timer control is cancelled under the following conditions.

• When the front door LH is locked [with the main power window and door lock/unlock switch or front door lock

assembly LH (key cylinder switch)]

• When the front door LH is locked with the remote keyless entry system (if equipped).

• A door is opened (door switch turns ON).

• The ignition switch is turned ON.

Interior lamp operational settings can be changed with the function setting of CONSULT-III.

INTERIOR LAMP BATTERY SAVER CONTROL

If an interior lamp is left ON and does not turn OFF even when the doors are closed, the BCM turns off power

to the interior lamps automatically to save the battery 15 minutes after the ignition switch is turned OFF.

The BCM controls power and ground to all interior lamps.

After the battery saver system turns the lamps OFF, the lamps will illuminate again when

• a signal is received from the keyless entry system

• a door is opened or closed

• the key is removed from or inserted into the key slot.

The Interior lamp battery saver control time period can be changed with the function setting of CONSULT-III.

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< SYSTEM DESCRIPTION >

INTERIOR ROOM LAMP CONTROL SYSTEM

Component Parts Location

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1.

BCM M18, M19, M20 (view with instru-
ment panel removed)

2.

Key switch M80 (column shift)
Key switch and key lock solenoid (key 
switch) M27 (floor shift)

3.

Tailgate cargo lamp LH C13
Tailgate cargo lamp RH C14

4.

Front door switch LH B8 (crew cab)
Front door switch RH B108 (crew cab)

5.

Rear door switch LH B18 (crew cab)
Rear door switch RH B116 (crew cab)

6.

Front door switch LH B8 (king cab)
Front door switch RH B108 (king cab)

7.

Rear door switch upper LH B73 (king 
cab)
Rear door switch upper RH B156 (king 
cab)

8.

Rear door switch lower LH B74 (king 
cab)
Rear door switch lower RH B157 (king 
cab)

9.

Cargo lamp B158