Nissan Altima (L32) 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:
M&A branch line circuit
Diagnosis Procedure
INSPECTION PROCEDURE
1.CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the terminals and connectors of the combination meter for damage, bend
and loose connection
(unit side and connector side).
...
P0127 IAT sensor
Description
The intake air temperature sensor is built-into the mass air flow sensor
(1). The sensor detects intake air temperature and transmits a
signal to the ECM.
The temperature sensing unit uses a thermistor which is sensitive to
the change in temperature. Electrical resistance of the ...
P1720 VSS
Description
ECM receives two vehicle speed signals via the CAN communication line. One is
sent from “ABS actuator and
electric unit (control unit)” via the combination meter, and the other is from
TCM (Transmission control module).
ECM uses these signals for engine control.
DTC Logic
...
