# P2C31 on the 2025 Ram 1500

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 P2C31

- [11015519](https://open.wenmarpro.com/bulletins/11015519), 2025-03-11: "Flash: Ignition System Control Module \(ISCM\) Updates Customers must experience a Malfunction Indicator Lamp \(MIL\) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes \(DTCs\): ● P2C30\-00 \- Ignition Coil Primary Circuit Fuse A. ● P2C31\-00 \- Ignition Coil Primary Circuit Fuse B. ● P0300\-00 \- Multiple Cylinder Misfire. ● P0301\-00 \- Cylinder 1 Misfire Detected. ● P0302\-00 \- Cylinder 2 Misfire Detected. ● P0303\-00 \- Cylinder 3 Misfire Detected. ● P0304\-00 \- Cylinder 4 Misfire Detected. ● P0305\-00 \- Cylinder 5 Misfire Detected. ● P0306\-00 \- Cylinder 6 Misfire Detected. ● P0420\-00 \- Catalyst System Efficiency Below Threshold Bank 1. ● P0430\-00 \- Catalyst System Efficiency Below Threshold Bank 2. Customers may also comment on the following: ● Engine hesitates/misfires \*This bulletin involves reprogramming the ISCM with the latest available software.\*\*"
- [11014729](https://open.wenmarpro.com/bulletins/11014729), 2025-03-04: "Flash: Ignition System Control Module \(ISCM\) Updates Customers must experience a Malfunction Indicator Lamp \(MIL\) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes \(DTCs\): ● \*\*P0300\-00 \- Multiple Cylinder Misfire. ● P0301\-00 \- Cylinder 1 Misfire Detected. ● P0302\-00 \- Cylinder 2 Misfire Detected. ● P0303\-00 \- Cylinder 3 Misfire Detected. ● P0304\-00 \- Cylinder 4 Misfire Detected. ● P0305\-00 \- Cylinder 5 Misfire Detected. ● P0306\-00 \- Cylinder 6 Misfire Detected. ● P0420\-00 \- Catalyst System Efficiency Below Threshold Bank 1. ● P0430\-00 \- Catalyst System Efficiency Below Threshold Bank 2.\*\* ● P2C30\-00 \- Ignition Coil Primary Circuit Fuse A. ● P2C31\-00 \- Ignition Coil Primary Circuit Fuse B. Customers may also comment on the following: ● Engine hesitates/misfires This bulletin involves inspecting and possibly reprogramming the ISCM and the Powertrain Control Module \(PCM\) with the latest available software."
- [11014727](https://open.wenmarpro.com/bulletins/11014727), 2025-03-04: "Flash: Ignition System Control Module \(ISCM\) Updates Customers must experience a Malfunction Indicator Lamp \(MIL\) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes \(DTCs\): ● P2C30\-00 \- Ignition Coil Primary Circuit Fuse A. ● P2C31\-00 \- Ignition Coil Primary Circuit Fuse B. ● P0300\-00 \- Multiple Cylinder Misfire. ● P0301\-00 \- Cylinder 1 Misfire Detected. ● P0302\-00 \- Cylinder 2 Misfire Detected. ● P0303\-00 \- Cylinder 3 Misfire Detected. ● P0304\-00 \- Cylinder 4 Misfire Detected. ● P0305\-00 \- Cylinder 5 Misfire Detected. ● P0306\-00 \- Cylinder 6 Misfire Detected. ● P0420\-00 \- Catalyst System Efficiency Below Threshold Bank 1. ● P0430\-00 \- Catalyst System Efficiency Below Threshold Bank 2. Customers may also comment on the following: ● Engine hesitates/misfires. This bulletin involves inspecting and possibly reprogramming the ISCM with the latest available software "
- [11014518](https://open.wenmarpro.com/bulletins/11014518), 2025-02-26: Flash: Ignition System Control Module \(ISCM\) Updates Customers must experience a Malfunction Indicator Lamp \(MIL\) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes \(DTCs\): ● P2C30\-00 \- Ignition Coil Primary Circuit Fuse A. ● P2C31\-00 \- Ignition Coil Primary Circuit Fuse B. Customers may also comment on the following: ● Engine hesitates/misfires.
- [11013590](https://open.wenmarpro.com/bulletins/11013590), 2025-02-04: "Flash: Ignition System Control Module \(ISCM\) Updates Customers must experience a Malfunction Indicator Lamp \(MIL\) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes \(DTCs\): ● P2C30\-00 \- Ignition Coil Primary Circuit Fuse A. ● P2C31\-00 \- Ignition Coil Primary Circuit Fuse B. Customers may also comment on the following: ● Engine hesitates/misfires. This bulletin involves inspecting and possibly reprogramming the ISCM and the Powertrain Control Module \(PCM\) with the latest available software"
- [11010622](https://open.wenmarpro.com/bulletins/11010622), 2024-11-18: "Flash: Ignition System Control Module \(ISCM\) Updates Customers must experience a Malfunction Indicator Lamp \(MIL\) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes \(DTCs\): ● P2C30\-00 \- Ignition Coil Primary Circuit Fuse A. ● P2C31\-00 \- Ignition Coil Primary Circuit Fuse B. Customers may also comment on the following: ● Engine hesitates/misfires. This bulletin involves inspecting and possibly reprogramming the ISCM and the Powertrain Control Module \(PCM\) with the latest available software."
- [11008908](https://open.wenmarpro.com/bulletins/11008908), 2024-10-14: "Flash: Ignition System Control Module \(ISCM\) Updates Customers must experience a Malfunction Indicator Lamp \(MIL\) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes \(DTCs\): ● P2C30\-00 \- Ignition Coil Primary Circuit Fuse A. ● P2C31\-00 \- Ignition Coil Primary Circuit Fuse B. Customers may also comment on the following: ● Engine hesitates/misfires. This bulletin involves inspecting and possibly reprogramming the ISCM and the Powertrain Control Module \(PCM\) with the latest available software."
- [11008017](https://open.wenmarpro.com/bulletins/11008017), 2024-09-25: "Flash: Ignition System Control Module \(ISCM\) Updates Customers must experience a Malfunction Indicator Lamp \(MIL\) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes \(DTCs\): ● P2C30\-00 \- Ignition Coil Primary Circuit Fuse A. ● P2C31\-00 \- Ignition Coil Primary Circuit Fuse B. Customers may also comment on the following: ● Engine hesitates/misfires. This bulletin involves reprogramming the ISCM and the Powertrain Control Module \(PCM\) with the latest available software."