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Home >> Dodge and Ram >> 2023 >> ProMaster 2500 >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> (Heating & Air Conditioning - Electrical Diagnostics) >> DTC Troubleshooting >> B1940-54-Self Learning Motors "ENDOFTRAVEL" - Missing Calibration >> Possible Causes

Possible Causes

Possible Causes
MISSING CALIBRATION OR NOT CALIBRATED CORRECTLY
MECHANICAL OR INTERNAL ELECTRICAL FAILURE OF HARDWARE
HVAC MODULE

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  . 

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