Nissan Altima (L32) 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 through CAN communication line
BASIC ASCD SYSTEM
Refer to Owner's Manual for ASCD operating ins ...
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 ...
Other materials:
USB interface (models without Navigation System) (if so equipped)
Connecting a device to the USB input
jack
WARNING
Do not connect/disconnect or operate the
USB device while driving. Doing so can be
a distraction. If distracted you could lose
control of your vehicle and cause an accident
or serious injury.
CAUTION
● Do not force the USB device int ...
Door outside molding
Removal and Installation
1. Front door outside molding
2. Rear door outside molding
Front Door Outside Molding
Removal
1. Open the front door window fully.
2. Remove the side view mirror. Refer to MIR-19, "Removal and Installation".
3. Lift and twist from rear side, disconn ...
On-vehicle repair
IPDM E/R (INTELLIGENT POWER DISTRIBUTION
MODULE ENGINE ROOM)
Removal and Installation
REMOVAL
1. Disconnect the battery negative terminal.
2. Remove the IPDM E/R cover (1) while pressing the pawl (A) at
the rear end of the IPDM E/R cover (1).
3. Disconnect the harness connectors from the ...
