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:

    Headlamp washer relay
    Component Inspection 1.CHECK HEADLAMP WASHER RELAY 1. Turn the ignition switch OFF. 2. Remove headlamp washer relay. 3. Apply battery voltage to headlamp washer relay between terminals 1 and 2. 4. Check continuity of headlamp washer relay. Is the inspection result normal? YES >> Headl ...

    B26F3 starter control relay
    DTC Logic DTC DETECTION LOGIC NOTE: • If DTC B26F3 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to BCS-83, "DTC Logic". • If DTC B26F3 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to BCS-84, &qu ...

    P0100 MAF sensor
    DTC Logic DTC DETECTION LOGIC Diagnosis Procedure 1.CHECK GROUND CONNECTIONS 1. Turn ignition switch OFF. 2. Check ground connection E38. Refer to Ground inspection in GI-44, "Circuit Inspection". Is the inspection result normal? YES >> GO TO 2. NO >> Repair or ...