HYBRID CONTROL SYSTEM, Diagnostic DTC:P3000-603

DTC Code DTC Name
P3000-603 HV Battery Malfunction

DESCRIPTION

The hybrid vehicle control ECU monitors its internal operation and detects malfunctions.

DTC No. INF Code DTC Detection Condition Trouble Area
P3000 603 The hybrid vehicle control ECU detects an HV battery cooling system error signal.

  • Hybrid vehicle control ECU

  • HV battery

PROCEDURE


  1. CHECK DTC OUTPUT (HV)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the power switch on (IG).

    3. Select the following menu items: Powertrain / Hybrid Control / Trouble Codes.

    4. Check if DTCs are output.

      Result
      Result Proceed to
      P3000-603 only is output. A
      DTCs other than P3000-603 are also output. B

    B

    GO TO DTC CHART Click here

    A

  2. REPLACE HYBRID VEHICLE CONTROL ECU


    1. Replace the hybrid vehicle control ECU Click here.

      Tech Tips

      If DTC P3000-603 is output, replace the HV battery. This code indicates that an HV battery cooling system problem exists, and this problem will result in deterioration of the battery due to high temperatures.


    NEXT

    REPLACE HV BATTERY ASSEMBLY Click here