Nissan Altima (L32) 2007-2012 Service Manual ≻ Engine control system VQ35DE ≻ Component diagnosis ≻ U1001 can comm circuit

Nissan Altima (L32) 2007-2012 Service Manual: U1001 can comm circuit

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.

DTC Logic

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.PERFORM DTC CONFIRMATION PROCEDURE

1. Turn ignition switch ON and wait at least 3 seconds.

2. Check DTC.

Is DTC detected? YES >> EC-1179, "Diagnosis Procedure".

NO >> INSPECTION END

Diagnosis Procedure

Go to LAN-16, "Trouble Diagnosis Flow Chart".

U0101 can comm circuit

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 excelle ...

P0011, P0021 IVT control

DTC Logic DTC DETECTION LOGIC NOTE: If DTC P0011 or P0021 is displayed with DTC P0075 or P0081, first perform the trouble diagnosis for DTC P0075, P0081. Refer to EC-1191, "DTC Logic" ...

Other materials:

Tachometer
5 inch (13 cm) Type A (if so equipped) The tachometer indicates engine speed in revolutions per minute (rpm). Do not rev the engine into the red zone 1. 7 inch (18 cm) Type B (if so equipped) CAUTION When engine speed approaches the red zone, shift to a higher gear or reduce engine speed. Operati ...

How to use the vehicle information display
The vehicle information display can be changed using the , , and OK buttons located on the steering wheel. - Use these buttons to navigate the vehicle information display. OK - Change or select an item in the vehicle information display. - Returns to the previous menu. The OK, a ...

Precautions on child restraints
WARNING Failure to follow the warnings and instructions for proper use and installation of child restraints could result in serious injury or death of a child or other passengers in a sudden stop or collision: The child restraint must be used and installed properly. Always follow all of ...