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Home >> Infiniti >> 2012 >> G37 Base, 2D Convertible >> Repair and Diagnosis >> External Pages >> Different car >> Section 111 (EV Control System) >> DTC/Circuit Diagnosis >> DTC P0AA1: System Main Relay + >> Diagnosis Procedure
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Diagnosis Procedure

WARNING: This page is about a different car, the 2011 Nissan Leaf. However, it is still accessible from the selected car via links, so may be relevant.
  1. DTC CHECK

    Perform self-diagnosis of VCM. Refer to "CONSULT FUNCTION ".

    Is DTC detected other than "P0AA1"? 

    YES: Perform detected DTC diagnosis procedure.

    NO: Go to 2.

  2. PERFORM SELF-DIAGNOSIS OF LBC

    Perform self-diagnosis of LBC. Refer to "CONSULT FUNCTION ".

    Is DTC detected? 

    YES: Perform detected DTC diagnosis procedure.

    NO: Go to 3.

  3. PERFORM SELF-DIAGNOSIS OF TRACTION MOTOR INVERTER

    Perform self-diagnosis of traction motor inverter. Refer to "CONSULT FUNCTION ".

    Is DTC detected? 

    YES: Perform detected DTC diagnosis procedure.

    NO: Go to 4.

  4. PERFORM SELF-DIAGNOSIS OF ON BOARD CHARGER

    Perform self-diagnosis of on board charger. Refer to "CONSULT FUNCTION ".

    Is DTC detected? 

    YES: Perform detected DTC diagnosis procedure.

    NO: Go to 5.

  5. PERFORM SELF-DIAGNOSIS OF A/C AUTO AMP.

    Perform self-diagnosis of A/C auto amp. Refer to "CONSULT FUNCTION ".

    Is DTC detected? 

    YES: Perform detected DTC diagnosis procedure.

    NO: Check that "SYSTEM MAIN RLY 1" in "BATTERY PACK" and "PRE CHARGE RLY" are in a shutoff state.

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