Nissan Altima 2007-2012 Service Manual: Overheating cause analysis

Troubleshooting Chart


On-vehicle maintenance


    Cooling system
    Cooling Circuit 1. Thermostat 2. Water control valve 3. Water control valve housing (Water outlet) 4. Cylinder block (Thermostat housing) 5. Water inlet 6. Radiator 7. Water pump 8. Cylinder ...

    On-vehicle maintenance
    ENGINE COOLANT System Inspection • Never remove the radiator cap when the engine is hot. Serious burns could occur from high pressure fluid escaping from the radiator. • Wrap a thic ...

    Other materials:

    Additional service when replacing control unit
     Description When replacing ECM, the following procedure must be performed.  Special Repair Requirement 1.PERFORM INITIALIZATION OF NVIS (NATS) SYSTEM AND REGISTRATION OF ALL NVIS (NATS) IGNITION KEY IDS Refer to SEC-15, "ECM RE-COMMUNICATING FUNCTION : Special Repair Requireme ...

    P1805 brake switch
    Description Brake switch signal is applied to the ECM through the stop lamp switch when the brake pedal is depressed. This signal is used mainly to decrease the engine speed when the vehicle is driving. DTC Logic DTC DETECTION LOGIC DTC CONFIRMATION PROCEDURE 1.PERFORM DTC CONFIRMATI ...

    P0720 vehicle speed sensor cvt (secondary speed sensor)
    Description The vehicle speed sensor CVT [output speed sensor (secondary speed sensor)] detects the revolution of the CVT output shaft and emits a pulse signal. The pulse signal is transmitted to the TCM, which converts it into vehicle speed. DTC Logic DTC DETECTION LOGIC DTC CONFIRMAT ...