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Home >> Lexus >> 2010 >> LS 600hL >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Hybrid Vehicle Control (Diagnostic Codes (P0338-885 - P0A1A-658) >> Hybrid Control System >> DTC P0A0F-204: Engine Failed to Start; DTC P0A0F-205: Engine Failed to Start; DTC P0A0F-206: Engine Failed to Start; DTC P0A0F-524: Engine Failed to Start; DTC P0A0F-525: Engine Failed to Start >> Procedure

DTC P0A0F-204: Engine Failed to Start; DTC P0A0F-205: Engine Failed to Start; DTC P0A0F-206: Engine Failed to Start; DTC P0A0F-524: Engine Failed to Start; DTC P0A0F-525: Engine Failed to Start: Procedure

  1. CHECK DTC OUTPUT (ENGINE CONTROL SYSTEM) 
    1. Connect the Techstream to the DLC3.
    2. Turn the power switch on (IG).
    3. Select the following menu items: Powertrain / Engine and ECT / Trouble Codes.
    4. Check if DTCs are output.

      Result

      Result Proceed to
      Engine control system DTCs are not output. A
      Engine control system DTCs are output. B

      HINT: 

      If P0A0F-204, 205, 206, 524 or 525 is output even though the ECM has not detected a malfunction, there is a malfunction in the hybrid vehicle control ECU.

    B → See step   2 

    A → See step   3 

  2. GO TO DTC CHART. Refer to  DIAGNOSTIC TROUBLE CODE CHART 
  3. REPLACE HYBRID VEHICLE CONTROL ECU. Refer to  COMPONENTS