Nissan Altima 2007-2012 Service Manual: Preparation

Commercial Service Tools

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

    Other materials:

    P1720 VSS
    Description ECM receives two vehicle speed signals via the CAN communication line. One is sent from “ABS actuator and electric unit (control unit)” via the combination meter, and the other is from TCM (Transmission control module). ECM uses these signals for engine control. DTC Logic ...

    Engine coolant
    Changing Engine Coolant WARNING: • To avoid being scalded, never change the coolant when the engine is hot. • Wrap a thick cloth around cap and carefully remove the cap. First, turn the cap a quarter of a turn to release built-up pressure. Then push down and turn the cap all the way to ...

    Power supply and ground circuit
    Diagnosis Procedure 1.INSPECTION START Start engine. Is engine running? YES >> GO TO 8. NO >> GO TO 2. 2.CHECK ECM POWER SUPPLY CIRCUIT-I 1. Turn ignition switch OFF and then ON. 2. Check the voltage between ECM harness connector and ground. Is the inspection result n ...