Nissan Altima 2007-2012 Service Manual: Function diagnosis
- Intelligent key system/engine start function
- NVIS (Nissan vehicle immobilizer system-nats)
- Vehicle security system
- Diagnosis system (BCM)
Inspection and adjustment
ECM RE-COMMUNICATING FUNCTION
Description
Performing following procedure can automatically perform re-communication of
ECM and BCM, but only when
the ECM has been replaced with a new one (*1).
...
Intelligent key system/engine
start function
System Diagram
System Description
INPUT/OUTPUT SIGNAL CHART
SYSTEM DESCRIPTION
• The engine start function of Intelligent Key system is a system that makes
it possible to start and stop ...
Other materials:
Normal operating condition
Description
AUDIO SYSTEM
The majority of the audio troubles are the result of outside causes (bad CD,
electromagnetic interference,
etc.).
Noise
The following noise results from variations in field strength, such as fading
noise and multi-path noise, or
external noise from trains and oth ...
Center speaker
Description
The audio unit sends audio signals to the BOSE speaker amp. The BOSE speaker
amp. amplifies the audio
signals before sending them to the center speaker using the audio signal
circuits.
Diagnosis Procedure
1.HARNESS CHECK
1. Disconnect BOSE speaker amp. connector B121 and center ...
Key slot
Diagnosis Procedure
1.CHECK KEY SLOT POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect key slot connector.
3. Check voltage between slot connector and ground.
Is the inspection result normal?
YES >> GO TO 2
NO >> Repair or replace key slot power supply circu ...