Nissan Altima 2007-2012 Service Manual: Overheating cause analysis

Troubleshooting Chart


On-vehicle maintenance


    Cooling system
    Cooling Circuit 1. Cylinder block (RH) 2. Oil cooler 3. Cylinder head (RH) 4. Water pump 5. Radiator 6. Water inlet 7. Thermostat 8. Cylinder head (LH) 9. Cylinder block (LH) Schematic ...

    On-vehicle maintenance
    ENGINE COOLANT System Inspection WARNING: ...

    Other materials:

    Vehicle Dynamic Control (VDC) off switch
    The vehicle should be driven with the Vehicle Dynamic Control (VDC) system on for most driving conditions. If the vehicle is stuck in mud or snow, the VDC system reduces the engine output to reduce wheel spin. The engine speed will be reduced even if the accelerator is depressed to the flo ...

    P0420 three way catalyst function
    DTC Logic DTC DETECTION LOGIC The ECM monitors the switching frequency ratio of air fuel ratio (A/F) sensor 1 and heated oxygen sensor 2. A three way catalyst (manifold) with high oxygen storage capacity will indicate a low switching frequency of heated oxygen sensor 2. As oxygen storage c ...

    P0031, P0032 A/F sensor 1 heater
    Description SYSTEM DESCRIPTION The ECM performs ON/OFF duty control of the A/F sensor 1 heater corresponding to the engine operating condition to keep the temperature of A/F sensor 1 element at the specified range. DTC Logic DTC DETECTION LOGIC DTC CONFIRMATION PROCEDURE 1.PRECONDITI ...