# U0001 on the 2016 Ram 5500

The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.

Nobody has written a description of this code yet.

## Bulletins for this model year that name U0001

- [10222970](https://open.wenmarpro.com/bulletins/10222970), 2022-10-17: Flash: Powertrain Control Module \(PCM\) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation a technician may find the following DTCs set in the PCM memory: P064F \- Unauthorized Software/Calibration Detected. P218F \- Reductant No Flow Detected. P202E \- \(Diesel Exhaust Fluid\) Reductant Injector Performance. U0001\-00 \- CAN C BUS. P1C55 \- NOx Sensor Intermittent \- Bank 1 Sensor 1. P24A5 \- EGR Cooler Bypass Bank 1 Control Stuck. P207F \- Reductant Quality Performance. P218F \- Reductant No Flow Detected. U110E \- Lost Ambient Temperature Message. The following Diagnostic Trouble Codes \(DTCs\) have been changed from a one trip fault to a two trip fault:P2280 \- Air Flow Restriction / Leak Between Air Cleaner and MAF. P203C \- \(Diesel Exhaust Fluid\) Reductant Level Sensor Circuit Low. P208D \- \(Diesel Exhaust Fluid\) Reductant Pump Control Circuit High. The following improvements/enhancements are also included in this software release:Fuel pressure override test improvement for wiTECH. AC pressure sensor error threshold change. No crank, No start fix. Ambient Air Temperature Improvements. Stationary de\-soot with WiTECH fix.
- [10217495](https://open.wenmarpro.com/bulletins/10217495), 2022-08-08: Flash: 6.7L Diagnostic and System Improvements This bulletin involves reprogramming the Engine Control Module/Powertrain Control Module \(ECM/PCM\) with the latest available software. The following Diagnostic Trouble Codes \(DTCs\) have been changed from a one trip fault to a two trip fault:P2280 \- Air Flow Restriction / Leak Between Air Cleaner and MAF. P203C \- \(Diesel Exhaust Fluid\) Reductant Level Sensor Circuit Low. P208D \- \(Diesel Exhaust Fluid\) Reductant Pump Control Circuit High. Customers may experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation a technician may find the following DTCs set in the PCM memory:P218F \- Reductant No Flow Detected\(automatic transmission only\). P202E \- \(Diesel Exhaust Fluid\) Reductant Injector Performance\(automatic transmission only\). U0001\-00 \- CAN C BUS\(automatic transmission only\). P1C55 \- NOx Sensor Intermittent \- Bank 1 Sensor 1\(automatic transmission only\). P24A5 \- EGR Cooler Bypass Bank 1 Control Stuck\(automatic transmission only\). P207F \- Reductant Quality Performance. P218F \- Reductant No Flow Detected. U110E \- Lost Ambient Temperature Message. The following improvements/enhancements are also included in this software release:Fuel pressure override test improvement for wiTECH\(automatic transmission only\). AC pressure sensor error threshold change\(automatic transmission only\). No crank, No start fix\(automatic transmission only\). Ambient Air Temperature Improvements. Stationary de\-soot with WiTECH fix.