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:

Rear-facing child restraint installation using the seat belts
WARNING The three-point seat belt with Automatic Locking Retractor (ALR) must be used when installing a child restraint. Failure to use the ALR mode will result in the child restraint not being properly secured. The restraint could tip over or be loose and cause injury to a child in a sudden stop o ...

Parking brake
WARNING Be sure the parking brake is fully released before driving. Failure to do so can cause brake failure and lead to an accident. Do not release the parking brake from outside the vehicle. Do not use the shift lever in place of the parking brake. When parking, be sure the parking brake ...

Vehicle security system
The vehicle security system provides visual and audible alarm signals if someone opens the doors or trunk when the system is armed. It is not, however, a motion detection type system that activates when a vehicle is moved or when a vibration occurs. The system helps deter vehicle theft but cannot p ...