Nissan Sentra manuals

Nissan Sentra 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 No. CONSULT screen terms (Trouble diagnosis content) DTC detecting condition Possible cause
U1001 CAN COMM CIRCUIT (CAN communication circuit) When ECM is not transmitting or receiving CAN communication signal other than OBD (emission related diagnosis) for 2 seconds or more. Harness or connectors (CAN communication line is open or shorted)

DTC CONFIRMATION PROCEDURE

1.PERFORM DTC CONFIRMATION PROCEDURE

  1. Turn ignition switch ON and wait at least 3 seconds.
  2. Check 1st trip DTC.

Is 1st trip DTC detected? YES >> Proceed to EC-169, "Diagnosis Procedure".

NO >> INSPECTION END

Diagnosis Procedure

Perform the trouble diagnosis for CAN communication system. Refer 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 excellen ...

P0011  IVT  control
DTC Logic DTC DETECTION LOGIC NOTE: If DTC P0011 is displayed with DTC P0075, first perform the trouble diagnosis for EC-180, "DTC Logic". DTC No. CONSULT screen terms (Tr ...

Other materials:

Front power window motor
Removal and Installation REMOVAL Remove the front door glass regulator (2). Refer to GW-16, "Removal and Installation". Remove the bolts (A) and the front power window motor (1). INSTALLATION Installation is in the reverse order of removal. ...

Rear disc brake
BRAKE PAD BRAKE PAD : Exploded View Upper sliding pin bolt Lower sliding pin bolt Bushing Cylinder body Inner shim cover Inner shim Inner pad (with pad wear sensor) Pad retainer Torque member Outer pad Outer shim Outer shim cover Apply rubber grease Molykote A ...

Basic inspection
DIAGNOSIS AND REPAIR WORK FLOW Work Flow NOTE: “DTC” includes DTC at the 1st trip. 1.OBTAIN INFORMATION ABOUT SYMPTOM Refer to TM-140, "Diagnostic Work Sheet" and interview the customer to obtain the malfunction information (conditions and environment when the malfunctio ...

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