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

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 battery negative 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 PG-4, "Harness Connector".

• 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 system, etc.

• Be sure to erase the unnecessary malfunction information (repairs completed) from the ECM 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:

    Passenger compartment
    CAUTION Never use a fuse of a higher or lower amperage rating than that specified on the fuse box cover. This could damage the electrical system or cause a fire. If any electrical equipment does not operate, check for an open fuse. 1. Be sure the ignition switch and the headlight switch are t ...

    Rear door glass
    Exploded View 1. Rear door panel 2. Sealing screen 3. Lower sash (front) 4. Rear door regulator assembly 5. Power window motor 6. Rear door glass 7. Lower sash (rear) 8. Rear door glass run Removal and Installation REMOVAL 1. Fully open rear door glass. 2. Remove rear door finishe ...

    U0300 can communication data
    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 ...