Flash: Heating, Ventilation and Air Conditioning (HVAC) Module Updates
Ram technical service bulletin 08-231-22 for 2014-2019 Ram Promaster.
- Bulletin number
- 08-231-22
- Component
- Electrical system
- Summary
- Flash: Heating, Ventilation and Air Conditioning (HVAC) Module Updates This bulletin involves reprogramming the HVAC control module with the latest available software. The customer may experience a Malfunction Indicator Lamp (MIL) illumination with one or more of the following Diagnostic Trouble Codes (DTCs) or the symptom/conditions listed below: ? U1710-86 - Implausible Data Received From HVAC. ? U1710-87 - ACM (Automatic Climate Module) On B CAN - Missing Message. ? The HVAC control for the air conditioning/heating outlet control, fan speed or other controls maybe inoperative after a Body Control Module (BCM) had been replaced. ? The rear defrost/heated mirror LED indicator on the HVAC controller does not illuminate when the button is depressed (2014 MY only).
Owners of these vehicles have filed 79 complaints in the electrical category.
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