Nissan Altima 2007-2012 Service Manual: Nissan vehicle immobilizer systemnats symptoms

Symptom Table

Security indicator does not turn ON or flash.

CAUTION: • Follow Trouble Diagnosis Flowchart referring to “SEC-209, "Work Flow"”. Determine malfunctioning condition before performing this diagnosis.

• Check that vehicle is under the condition shown in “Conditions of vehicle” before starting diagnosis.

• Check systems shown in the “Action” column in this order.

CONDITIONS OF VEHICLE (OPERATING CONDITIONS) • Intelligent Key is not inserted into key slot.

• Engine switch is not depressed.

    Vehicle security system symptoms
    Symptom Table *: Check that the system is in the armed phase. ...

    Other materials:

    BCM branch line circuit
    Diagnosis Procedure INSPECTION PROCEDURE 1.CHECK CONNECTOR 1. Turn the ignition switch OFF. 2. Disconnect the battery cable from the negative terminal. 3. Check the terminals and connectors of the BCM for damage, bend and loose connection (unit side and connector side). Is the inspec ...

    Door locks/unlocks precaution
    ● Do not push the door handle request switch with the Intelligent Key held in your hand as illustrated. The close distance to the door handle will cause the Intelligent Key system to have difficulty recognizing that the Intelligent Key is outside the vehicle. ● After locking with ...

    Precaution
    Precautions for Trouble Diagnosis CAUTION: • Never apply 7.0 V or more to the measurement terminal. • Use a tester with open terminal voltage of 7.0 V or less. • Turn the ignition switch OFF and disconnect the battery cable from the negative terminal when checking the harness. Prec ...