Nissan Juke Service and Repair Manual : On Board Diagnostic (OBD) System of Engine and CVT

The ECM has an on board diagnostic system. It will light up the malfunction indicator (MI) to warn the driver of a malfunction causing emission deterioration.

CAUTION:
Be sure to turn the ignition switch OFF and disconnect the negative battery cable before any repair or inspection work. The open/short circuit of related switches, sensors, solenoid valves, etc. will cause the MI to light up.

Be sure to connect and lock the connectors securely after work. A loose (unlocked) connector will cause the MI to light up due to the open circuit. (Be sure the connector is free from water, grease, dirt, bent terminals, etc.) Certain systems and components, especially those related to OBD, may use a new style slide-locking type harness connector. For description and how to disconnect, refer to GI-3, "Contents".

Be sure to route and secure the harnesses properly after work. The interference of the harness with a bracket, etc. may cause the MI to light up due to the short circuit.

Be sure to connect rubber tubes properly after work. A misconnected or disconnected rubber tube may cause the MI to light up due to the malfunction of the fuel injection system, etc.

Be sure to erase the unnecessary malfunction information (repairs completed) from the ECM and TCM (Transmission control module) before returning the vehicle to the customer.

    Precaution for Procedure without Cowl Top Cover
    When performing the procedure after removing cowl top cover, cover the lower end of windshield with urethane, etc. ...

    General Precautions
    Always use a 12 volt battery as power source. Do not attempt to disconnect battery cables while engine is running. Before connecting or disconnecting the ECM harness connector, turn ignition ...

    Other materials:

    Automatic door locks
    All doors lock automatically when the vehicle speed reaches 15 MPH (24 km/h). All doors unlock automatically when the ignition switch is placed in the OFF position (models with Intelligent Key system).   All doors unlock automatically when the key is removed from the ignition switch (m ...

    Meters and gauges
    1. Tachometer 2. Engine coolant temperature gauge 3. Vehicle information display Odometer/twin trip odometer Trip computer Torque vectoring AWD (AWD model) Outside air temperature 4. Fuel gauge 5. Speedometer 6. Warning/indicator lights 7. Instrument brightness control ...

    Precaution
    REPAIRING HIGH STRENGTH STEEL High Strength Steel (HSS) High strength steel is used for body panels in order to reduce vehicle weight. Accordingly, precautions in repairing automotive bodies made of high strength steel are described below: FOR 2WD MODELS FOR 4WD MODELS Read the follo ...