Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSDODGE AND RAM2024PROMASTER 3500 BASE, CUTAWAYREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 53 (ELECTRIC VEHICLE CONTROL UNIT MODULE (EVCU) - DTCS P1628-00 TO P1C8F-00)
2024 Dodge and Ram ProMaster 3500 Base, Cutaway
Section 53 (Electric Vehicle Control Unit Module (EVCU) - DTCS P1628-00 To P1C8F-00)
2024 Dodge and Ram ProMaster 3500 Base, CutawaySECTION Section 53 (Electric Vehicle Control Unit Module (EVCU) - DTCS P1628-00 To P1C8F-00)
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.
- DTC Troubleshooting
- P1628-00 Sensor Reference Voltage 2 Erratic
- P167B-00 Controlled System Shutdown
- P16F3-00 Internal Control Module Redundant Memory Performance
- P16F5-00 HCP Internal - PLD Failure
- P16F9-00 HCP Internal - Shutdown Performance
- P1A11-00 Secret Key Not Stored In Ecu
- P1A1E-00 Hybrid Thermal System Control Circuit
- P1AF8-00 MCPA Control Module Shutdown Performance
- P1B72-00 Electric Coolant Heater Temperature Outlet Sensor Performance
- High Voltage Warning
- Theory Of Operation
- Component Functional Description - Two Wire Temp Sensor
- Analog To Digital Signal Description
- VF-BEV Coolant Temperature Sensor Locations And Related DTCS
- Technical Data - Coolant Temp Sensor Resistance Values
- Enabling Conditions And Possible Causes - Coolant Temp Sensor
- Preliminary Diagnostic Checks
- Check For An Active Or Intermittent Condition
- Two Wire Temp Sensor Diagnostic Testing
- Electric Vehicle Control Unit (EVCU) Verification Test
- P1B73-00 Electric Coolant Heater Temperature Inlet Sensor Performance
- High Voltage Warning
- Theory Of Operation
- Component Functional Description - Two Wire Temp Sensor
- Analog To Digital Signal Description
- VF-BEV Coolant Temperature Sensor Locations And Related DTCS
- Technical Data - Coolant Temp Sensor Resistance Values
- Enabling Conditions And Possible Causes - Coolant Temp Sensor
- Preliminary Diagnostic Checks
- Check For An Active Or Intermittent Condition
- Two Wire Temp Sensor Diagnostic Testing
- Electric Vehicle Control Unit (EVCU) Verification Test
- P1C8E-00 Power Supply 1 Circuit Low
- P1C8F-00 Power Supply 1 Circuit High
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.