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Home >> Dodge and Ram >> 2024 >> ProMaster 2500 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 45 (Electric Vehicle Control Unit Module (EVCU) - DTCS B1271-00 To P0217-00) >> DTC Troubleshooting >> B3A11-00 A/C Refrigerant Expansion Valve Actuator Control Circuit Performance >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2024 RAM ProMaster EV. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
SHUT-OFF VALVE CIRCUIT OPEN
SHUT-OFF VALVE CIRCUIT SHORTED TO GROUND
REFRIGERANT SHUT-OFF VALVE
ELECTRIC VEHICLE CONTROL UNIT (EVCU)

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

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