Nissan Sentra manuals

Nissan Sentra Service Manual: U1000 CAN Comm circuit

Description

CAN (Controller Area Network) is a serial communication system for real time application. It is an on-vehicle multiplex communication system with high data communication speed and excellent error detection ability.

Many electronic control units are equipped into vehicles, and each control unit shares information and links with other control units during operation. With CAN communication, control units are connected with two communication lines (CAN-H line, CAN-L line) allowing a high rate of information transmission with less wiring.

Each control unit transmits and receives data but selectively reads required data only. Refer to LAN-30, "CAN COMMUNICATION SYSTEM : CAN Communication Signal Chart".

DTC Logic

DTC DETECTION LOGIC

CONSULT name

DTC

DTC detecting condition

Repair order

CAN COMMUNICATION FAILURE U1000 When air bag diagnosis sensor unit is not transmitting or receiving CAN communication signals for 2 or more seconds. Refer to SRC-43, "Diagnosis Procedure".

DTC CONFIRMATION PROCEDURE

1.PERFORM SELF-DIAGNOSIS

  1. Turn ignition switch ON and wait for 7 seconds or more.
  2. Using CONSULT, perform SELF-DIAGNOSIS RESULTS of AIR BAG.
  3. Check if any DTC is displayed in the self-diagnosis results.

Is DTC detected? YES >> Refer to SRC-43, "Diagnosis Procedure".

NO >> Refer to GI-39, "Intermittent Incident".

Diagnosis Procedure

1.CHECK CAN COMMUNICATION SYSTEM

Check CAN communication system. Refer to LAN-16, "Trouble Diagnosis Flow Chart".

>> Inspection End.

DTC/Circuit diagnosis
...

U1010 Control unit (CAN)
Description Air bag diagnosis sensor performs self-tests on key ON. If CAN communication failure within control unit is detected, DTC is set. DTC Logic DTC DETECTION LOGIC CONSULT name ...

Other materials:

Floor trim
Exploded View Floor trim Harness protector Front floor spacer (RH) Front floor spacer (LH) Rear floor spacer (LH) Rear floor spacer (RH) Column hole cover Pawl Front Removal and Installation REMOVAL Remove front seat assemblies. Refer to the following. Refer to S ...

Passenger side door mirror defogger
Description Heats the heating wire with the power supply from the rear window defogger relay to prevent the door mirror from fogging up. Component function check 1.Check door mirror defogger rh Check that the heating wire of door mirror defogger rh is heated when turning the rear window de ...

RearView Monitor (if so equipped)
When the shift lever is shifted into the R (Reverse) position, the monitor display shows the view to the rear of the vehicle. WARNINGFailure to follow the warnings and instructions for proper use of the RearView Monitor could result in serious injury or death. The Rear ...

В© 2014-2019 Copyright www.nisentra.com