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.
2023 Dodge and Ram ProMaster 3500 Van CargoFACTORY OEM SERVICE PROCEDURE
3.6L - DTCS U140B To U1504
- DTC Troubleshooting
- U140B-Implausible Left Rear Wheel Speed Signal Received
- Notes
- Theory Of Operation-Braking Systems
- Component Functional Description - Brake Pedal Position Sensor
- Component Functional Description - Hydraulic Control Unit (HCU) Assembly
- Component Functional Description - Wheel Speed Sensors
- Component Functional Description - Steering Angle Sensor
- Component Functional Description - Anti-Lock Brake System Control Module (Abs)
- Technical Data-Braking System Messages
- When Monitored
- Set Condition
- Default Action
- Possible Causes
- Diagnostic Overview
- Check For An Active Or Intermittent Condition
- Diagnostic Test - Non-EBOOSTER Brake System - Pcm
- Diagnostic Test-Wheel Speed Sensor Faults
- U140C-Implausible Right Rear Wheel Speed Signal Received
- Notes
- Theory Of Operation-Braking Systems
- Component Functional Description - Brake Pedal Position Sensor
- Component Functional Description - Hydraulic Control Unit (HCU) Assembly
- Component Functional Description - Wheel Speed Sensors
- Component Functional Description - Steering Angle Sensor
- Component Functional Description - Anti-Lock Brake System Control Module (Abs)
- Technical Data-Braking System Messages
- When Monitored
- Set Condition
- Default Action
- Possible Causes
- Diagnostic Overview
- Check For An Active Or Intermittent Condition
- Diagnostic Test - Non-EBOOSTER Brake System - Pcm
- Diagnostic Test-Wheel Speed Sensor Faults
- U1411-Implausible Fuel Volume Signal Received
- U1417-Implausible Left Wheel Distance Signal Received
- Notes
- Theory Of Operation-Braking Systems
- Component Functional Description - Brake Pedal Position Sensor
- Component Functional Description - Hydraulic Control Unit (HCU) Assembly
- Component Functional Description - Wheel Speed Sensors
- Component Functional Description - Steering Angle Sensor
- Component Functional Description - Anti-Lock Brake System Control Module (Abs)
- Technical Data-Braking System Messages
- When Monitored
- Set Condition
- Default Action
- Possible Causes
- Diagnostic Overview
- Check For An Active Or Intermittent Condition
- Diagnostic Test - Non-EBOOSTER Brake System - Pcm
- Diagnostic Test-Wheel Speed Sensor Faults
- U1141-Lost Brake And Torque Messages
- U1412-Implausible Vehicle Speed Signal Received
- U1431-Implausible Data Received From Cruise Control Module
- U1504-Implausible Message Data Length Received From Steering Angle Sensor
- U140B-Implausible Left Rear Wheel Speed Signal Received
Factory Service Tools
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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.
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