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Home >> Lexus >> 2010 >> HS 250h >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Hybrid Control (Diagnostic Codes (P0AA6-526 - U0424-537) & Circuit Tests) >> Hybrid Control System >> DTC U0424-537: Invalid Data Received from HVAC Control Module >> Procedure

DTC U0424-537: Invalid Data Received from HVAC Control Module: Procedure

  1. CHECK DTC OUTPUT (AIR CONDITIONING SYSTEM) 
    1. Connect the Techstream to the DLC3.
    2. Turn the power switch on (IG).
    3. Select the following menu items: Body Electrical / Air Conditioner / Trouble Codes.
    4. Check if DTCs are output.

      Result

      Result Proceed to
      Air conditioning system DTCs are not output. A
      Air conditioning system DTCs are output. B

    B → See step   3 

    A → See step   2 

  2. REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to COMPONENTS 
  3. GO TO AIR CONDITIONING SYSTEM. Refer to HOW TO PROCEED WITH TROUBLESHOOTING 
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