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Home >> Lexus >> 2008 >> RX 400h AWD >> Repair and Diagnosis (Single Page) >> Engine Performance >> Engine Control System >> SFI System >> DTC U0001 High Speed CAN Communication Circuit >> Inspection Procedure

Inspection Procedure

  1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC U0001) 
    1. Connect Techstream to the DLC3.
    2. Turn the ignition switch to the ON position.
    3. Turn the tester ON.
    4. Enter the following menus: Powertrain / Engine and ECT / Trouble Code.
    5. Read the DTCs.

      Result 

      RESULT CHART

      Display (DTC output) Proceed to
      U0001 A
      U0001 and other DTCs B

    B: GO TO RELEVANT DTC CHART 

    A: REPLACE HV CONTROL ECU 

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