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Home >> Lexus >> 2007 >> RX 400h AWD >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Hybrid Vehicle Control (P310) - RX400H - DTC P0AA1-231 Through U0424-537 >> DTC P3000-603 HV Battery Malfunction >> Inspection Procedure

Inspection Procedure

  1. CHECK DTC OUTPUT (HV) 
    1. Connect the intelligent tester to the DLC3.
    2. Turn the ignition switch to the ON position.
    3. Select the following menu items: DIAGNOSIS / OBD/ MOBD / HV ECU / DTC INFO / CURRENT CODES.
    4. Read output DTC. (See DTC CHECK / CLEAR )

      Result: 

      DTCs except P3000-603 are output. 

    YES: GO TO  DTC CHART 

    NO: REPLACE HYBRID VEHICLE CONTROL ECU 

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