Nissan Altima 2007-2012 Service Manual: Can communication
System Description
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle multiplex communication line with high data communication speed and excellent error detection ability. Many electronic control units are equipped onto a vehicle, and each control unit shares information and links with other control units during operation (not independent). In CAN communication, control units are connected with 2 communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
Refer to LAN-25, "CAN Communication Signal Chart", about CAN communication for detail.
Automatic speed control device (ASCD)
System Diagram System Description INPUT/OUTPUT SIGNAL CHART *: This signal is sent to the ECM via the CAN communication line BASIC ASCD SYSTEM Refer to Owner's Manual for ASCD operating inst ...Cooling fan control
System Diagram System Description INPUT/OUTPUT SIGNAL CHART *1: The ECM determines the start signal status by the signals of engine speed and battery voltage. *2: This signal is sent to EC ...Other materials:
Side guard molding
Removal and Installation
1. Double-faced adhesive tape
Removal
CAUTION:
Never apply tack-paper adhesive remover to body panel surface finished with
lacquer-based paints.
• Original side guard molding is affixed to body panel with double-faced
adhesive tape.
1. Heat molding to betwe ...
Precaution
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER"
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”,
used along
with a front seat belt, helps to reduce the risk or severity of injury to the
dr ...
Lan system circuit
Description
SYMPTOM: Mode door motor, intake door motor and/or air mix door motor does
not operate normally.
Diagnosis Procedure
DIAGNOSIS PROCEDURE FOR LAN CIRCUIT
1.CHECK POWER SUPPLY FOR DOOR MOTORS
1. Press ignition switch ON.
2. Check voltage between front air control connector M37 ...