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Home >> Toyota >> 2014 >> Prius Two >> Repair and Diagnosis (Single Page) >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Hybrid Control System (Diagnostic Codes & Circuit Tests) (Except Plug-In) >> Hybrid Control System >> DTC U0100-211: Lost Communication with ECM / PCM "A"; DTC U0100-212: Lost Communication with ECM / PCM "A"; DTC U0100-530: Lost Communication with ECM / PCM "A"; DTC U0129-220: Lost Communication with Brake System Control Module; DTC U0129-222: Lost Communication with Brake System Control Module; DTC U0129-527: Lost Communication with Brake System Control Module; DTC U0129-528: Lost Communication with Brake System Control Module; DTC U0140-146: Communication Error from Body ECU to HV ECU; DTC U0151-763: Communication Error from Airbag ECU to HV ECU; DTC U0164-594: Communication Error from A/C ECU to HV ECU; DTC U0164-827: Communication Error from A/C ECU to HV ECU; DTC U1107-436: Lost Communication with Power Management Module [10/2013 - ] >> Confirmation Driving Pattern
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Confirmation Driving Pattern

Fig 1: View Of Driving Pattern
GTY452536Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  1. Connect the Techstream to the DLC3.
  2. Turn the power switch on (IG) and turn the Techstream on.
  3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
  4. Turn the power switch off and wait for 30 seconds or more.
  5. Turn the power switch on (IG) and turn the Techstream on.
  6. Turn the power switch on (READY) and wait for 2 minutes or more. [A]
  7. Enter the following menus: Powertrain / Hybrid Control / Trouble Codes. [B]
  8. Read the current DTCs.

    HINT: 

    • If a current DTC is output, the system is malfunctioning.
    • If a current DTC is not output and want to confirm permanent DTC, perform the following procedure.
  9. Check that permanent DTCs are cleared.
  10. If the permanent DTCs are not cleared, perform the universal trip, and then check for permanent DTCs again.