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:

    Power supply and ground circuit
    Diagnosis Procedure 1.CHECK FUSE AND FUSIBLE LINK Check that the following fuse and fusible link are not blown. Is the fuse fusing? YES >> Replace the blown fuse or fusible link after repairing the affected circuit if a fuse or fusible link is blown. NO >> GO TO 2. 2.CHECK ...

    Operation
    Switch Name and Function OPERATION AND DISPLAY A/C Display (Display in Multi Display Unit) • Air conditioning system operation status is indicated on display in multi display unit. Indication of air conditioning system varies according to display mode of multi display unit. For changing pr ...

    All-Wheel Drive (AWD) (if so equipped)
    WARNING •  For AWD equipped vehicles, do not attempt to raise two wheels off the ground and shift the transmission to any drive or reverse position with the engine running. Doing so may result in drivetrain damage or unexpected vehicle movement which could result in serious vehicle damag ...