Applicable Vehicles
M2, M2 Plus, and New Cascadia vehicles with a Cummins diesel engine (B6.7, L9, X12, X15) that is equipped with the Cummins CM2450 engine controller.
Symptoms
Issues with regeneration of the aftertreatment system, coupled with either of the following Cummins engine controller fault codes:
Code 3558 (Aftertreatment 1 DEF Dosing Unit-Voltage Above Normal or Shorted To High S
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2023 Freightliner Cascadia Front HVAC Controller - Diagnostic Information Updates
Posted by: Duaparts on
Applicable Vehicles
All Cascadia (P3) daycab and sleeper cab
Symptoms
N/A
Issue
There is a severe supply constraint on the main HVAC controller, A22-60645-101. An electronic component is no longer available to manufacture the main HVAC controller. Part supplies are extremely limited, and there are no alternative parts.
As information is gathered to identify reasons that the HVAC controller i
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