DTC U0424-81: HVAC Control Module to Hybrid Powertrain Control Module Invalid Serial Data Received [12/2019 - 11/2023]: Procedure
WARNING: This page is about a different variant/trim than selected.
- 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 [12/2019 - 10/2022] , or refer to REMOVAL [10/2022 - 11/2023]
Result:
B
GO TO DTC CHART (AIR CONDITIONING SYSTEM). Refer to DIAGNOSTIC TROUBLE CODE CHART [12/2019 - 10/2021] , or refer to DIAGNOSTIC TROUBLE CODE CHART [10/2021 - 10/2022] , or refer to DIAGNOSTIC TROUBLE CODE CHART [10/2022 - 11/2023]
- Check if DTCs related to the Air Conditioning System (A/C) are output.