Nissan Altima 2007-2012 Service Manual: Symptom diagnosis

SYSTEM SYMPTOM Symptom Table

The diagnostics item numbers show the sequence for inspection. Inspect in order from item 1.

    Ecu diagnosis
    TCM Reference Value VALUES ON THE DIAGNOSIS TOOL * Means CVT fluid temperature. Actual oil temperature °C (°F) cannot be checked unless a numeric value is converted. Refer to TM-237, &q ...

    Precaution
    Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER" The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER ...

    Other materials:

    Positive crankcase ventilation
    Description This system returns blow-by gas to the intake manifold. The positive crankcase ventilation (PCV) valve is provided to conduct crankcase blow-by gas to the intake manifold. During partial throttle operation of the engine, the intake manifold sucks the blow-by gas via the PCV ...

    P0125 ECT sensor
    Description The engine coolant temperature sensor is used to detect the engine coolant temperature. The sensor modifies a voltage signal from the ECM. The modified signal returns to the ECM as the engine coolant temperature input. The sensor uses a thermistor which is sensitive to the change i ...

    Basic inspection
    DIAGNOSIS AND REPAIR WORKFLOW Work Flow OVERALL SEQUENCE DETAILED FLOW 1. GET INFORMATION FOR SYMPTOM Get the detailed information from the customer about the symptom (the condition and the environment when the incident/malfunction occurred). >> GO TO 2 2. CHECK DTC 1. Check DT ...