Nissan Altima (L32) 2007-2012 Service Manual: Function diagnosis 
INTERIOR ROOM LAMP CONTROL SYSTEM 
System Diagram  
System Description  
OUTLINE
• Interior room lamps* are controlled by interior room lamp timer control 
function of BCM.
*:Front room/map lamps and personal lamps (when lamp switch is in DOOR 
position).
• Trunk room lamp is controlled by trunk room lamp control function of BCM.
• Step lamps are controlled by step lamp control function of BCM.
ILLUMINATION 
Wiring Diagram - Coupe 
Wiring Diagram - Sedan 
   DIAGNOSIS AND REPAIR WORKFLOW
Work Flow
OVERALL SEQUENCE
DETAILED FLOW
1.INTERVIEW FOR MALFUNCTION
Find out what the customer's concerns are.
>> GO TO 2
2.SYMPTOM CHECK
Verify the sy ... 
    
   BCM (BODY CONTROL MODULE)
Reference Value 
VALUES ON THE DIAGNOSIS TOOL
Terminal Layout 
Physical Values 
1: Sedan only
2: With LH front window anti ... 
    
   Other materials: Interior trunk lid release 
   	
WARNING
Closely supervise children when they
are around cars to prevent them from
playing and becoming locked in the
trunk where they could be seriously injured.
Keep the car locked, with the rear
seatback and trunk lid securely latched
when not in use, and prevent children's
access to car keys.
T ...
   	
Tire chains 
   	CAUTION
Only certain SAE class "S" tire chains
can be used on this vehicle. Using the
wrong Class "S" chains on this vehicle
will cause damage to the vehicle. If you
plan to use tire chains/cables, you
should use a tire chain that meets the
minimum clearances for your vehicle.
Use of tire chains ma ...
   	
Automatic operation 
   	Cooling and/or dehumidified
heating (AUTO)
This mode may be used all year round as
the system automatically works to keep a
constant temperature. Air flow distribution,
air intake control, and fan speed are also
controlled automatically.
1. Press the AUTO button on.
2. Turn the temperature control  ...