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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 >> B12B4-00 Charge Status Indicator Module Internal >> Theory Of Operation

Theory Of Operation

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.

The Electric Vehicle Control Unit (EVCU) monitors the Charge Port Indicator status over the LIN Bus. The EVCU receives a message from the Charge Port Indicator indicating an internal problem.

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