DTC U0424-81: HVAC Control Module to Hybrid Powertrain Control Module Invalid Serial Data Received [09/2022 - ]: Procedure
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- CHECK DTC OUTPUT (AIR CONDITIONER)
- Check if DTCs related to the Air Conditioning System (A/C) are output.
Body Electrical > Air Conditioner > Trouble Codes
Result
Result Proceed to DTCs related to Air Conditioning System (A/C) are not output. A DTCs related to Air Conditioning System (A/C) are output. B - Turn the ignition switch off.
Result:
A
REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to REMOVAL [09/2022 - 11/2022] , or refer to REMOVAL [11/2022 - ]
Result:
B
GO TO DTC CHART (AIR CONDITIONING SYSTEM). Refer to DIAGNOSTIC TROUBLE CODE CHART [09/2022 - ]
- Check if DTCs related to the Air Conditioning System (A/C) are output.