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:

    Service data and specifications (SDS)
    Wheel Bearing Drive Shaft 2WD *: For measuring position, refer to FAX-26, "WHEEL SIDE : Disassembly and Assembly" (Wheel side), FAX- 29, "TRANSAXLE SIDE : Disassembly and Assembly" (Transaxle side). 4WD *: For measuring position, refer to FAX-26, "WHEEL SIDE : ...

    Before starting the engine
    Make sure the area around the vehicle is clear. Check fluid levels such as engine oil, coolant, brake fluid, and window washer fluid as frequently as possible, or at least whenever you refuel. Check that all windows and lights are clean. Visually inspect tires for their appearance and ...

    Periodic maintenance
    REAR PROPELLER SHAFT Inspection APPEARANCE AND NOISE Check the propeller shaft tube surface for dents or cracks. If damaged, replace propeller shaft assembly. If center bearing is noisy or damaged, replace propeller shaft assembly. VIBRATION If vibration is present at high speed, inspe ...