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Home >> Lexus >> 2017 >> RX 450h Base >> Repair and Diagnosis (Single Page) >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Hybrid Control System (Diagnostic Codes) (2 Of 10) >> Hybrid Control System >> DTC P0A1A-166: Generator Control Module [10/2015 - ] >> Confirmation Driving Pattern

Confirmation Driving Pattern

GTY447940Courtesy 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 (READY).
  6. With the vehicle stopped with the shift lever in P, depress the accelerator pedal and start the engine. [A]
  7. Depress the accelerator pedal and keep the engine running for 30 seconds or more. [B]
  8. Enter the following menus: Powertrain / Hybrid Control / Trouble Codes. [C]
  9. Read the current DTCs.

    HINT: 

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