Nissan Juke Service and Repair Manual : Not communication with the ECM

Description

CHART 1: NO COMMUNICATION WITH THE ECM

Diagnosis Procedure

1.INSPECTION START

Ensure that CONSULT-III is not causing the malfunction by trying to establish dialogue with an ECM on another vehicle. If the CONSULT-III is not at malfunction, and dialogue cannot be established with any other ECM on the same vehicle, the cause could be a suspected ECM interfering on the CAN communication line.

Check the voltage of the battery and carry out the operations necessary to obtain a voltage which is to specification (9.5 V < U battery < 17.5 V).

>> GO TO 2.

2.CHECK CAN COMMUNICATION

Perform trouble diagnosis on the CAN communication line using CONSULT-III. Refer to LAN-31, "CAN COMMUNICATION SYSTEM : CAN Communication Signal Chart".

Is the inspection result normal? YES >> GO TO 3.

NO >> Repair or replace harness or connector.

3.CHECK ECM GROUND

Check the ECM earth (ground).

Is the inspection result normal? YES >> GO TO 4.

NO >> Repair or replace ground connection.

4.CHECK ECM POWER SUPPLY AND GROUND CIRCUIT

Check ECM power supply and ground circuit. Refer to EC-885, "Diagnosis Procedure".

Is the inspection result normal? YES >> GO TO 5.

NO >> Repair or replace harness or connector.

5.CHECK DATA LINK CONNECTOR CIRCUIT

Check for the presence of 12 V on terminal 16 with ignition switch OFF, 12 V on terminal 8 with ignition switch ON and an earth (ground) on terminals 4 and 5 of the data link connector.

Repair if necessary.

Is the inspection result normal? YES >> INSPECTION END

NO >> Repair or replace harness or connector.

    Engine control system symptoms
    Symptom Table NOTE: Only consult this customer complaint after a complete check using the CONSULT-III. ...

    Engine does not start or starts with difficulty
    Description CHART 2: ENGINE DOES NOT START OR STARTS WITH DIFFICULTY Diagnosis Procedure 1.CHECK FUEL Check that the fuel reservoir is correctly filled and with the right fuel. >> GO TO 2 ...

    Other materials:

    U0100 lost communication (ECM A)
    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 malfunction detection ability. Many electronic control units are equipped onto a vehicle, and ...

    Assembly and Installation
    • Use torque wrench to tighten bolts or nuts to specification. • When tightening nuts and bolts, as a basic rule, equally tighten in several different steps starting with the ones in center, then ones on inside and outside diagonally in this order. If the order of tightening is specified, do ...

    Service Notice or Precaution
    OBD SELF-DIAGNOSIS (WITH OBD) • CVT self-diagnosis is performed by the TCM in combination with the ECM. The results can be read through the blinking pattern of the malfunction indicator (MI). Refer to the table on TM-159, "CONSULT-III Function (TRANSMISSION)" for the indicator used ...