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Home >> Infiniti >> 2021 >> QX80 Premium Select, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (DTCS) (4 Of 5) >> Engine (ECM) >> DTC P1557: Battery Temperature Sensor >> Confirmation Procedure
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Confirmation Procedure

  1. PRECONDITIONING 
    1. Turn ignition switch OFF and wait at least 10 seconds.
    2. Turn ignition switch ON.
    3. Turn ignition switch OFF and wait at least 10 seconds.

    TESTING CONDITION:

    Before performing the following procedure, confirm that battery voltage is 10 V or more at idle.

    GO TO 2.

  2. PERFORM DTC CONFIRMATION PROCEDURE 
    1. Start the engine and let it idle at least 10 seconds.
    2. Check 1st trip DTC.

    Is 1st trip DTC detected?

    YES

    Refer to DTC Diagnosis Procedure .

    NO

    INSPECTION END