# Service bulletin 1811322

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10221481
- Published by NHTSA: 2022\-09\-26
- Manufacturer's number: 1811322
- Manufacturer's date: 2022\-06\-10
- NHTSA component: ELECTRICAL SYSTEM; EXTERIOR LIGHTING; FUEL SYSTEM, GASOLINE; SERVICE BRAKES, HYDRAULIC; FUEL SYSTEM, DIESEL; BACK OVER PREVENTION

## NHTSA's summary

Flash: Powertrain Control Module \(PCM\) Updates This bulletin involves reprogramming the PCM with the latest available software. There will be a choice between two calibrations. One for vehicles that utilize an ammonia sensor and one for vehicles that have hadthe ammonia sensor removed. Be sure to select the correct software based on vehicle configuration.Customers may experience a Malfunction Indicator Lamp \(MIL\) illumination. Uponfurther investigation the technician may find that one or more of the following DTCs have been set: P064F \- Unauthorized Software/Calibration Detected. P202E \- \(Diesel Exhaust Fluid\) Reductant Injector Performance. P24A5 \- EGR Cooler Bypass Bank 1 Control Stuck. U0001 \- Can C Bus. P20EE \- Selective Catalytic Reduction \(SCR\) NOx Catalyst Efficiency BelowThreshold \- Bank 1 \(For ammonia sensor equipped vehicles\). P1C55 \- NOx Sensor Intermittent \- Bank 1 Sensor 1 \(For ammonia sensor deletedsystems only\). P218F \- Reductant No Flow Detected. P242F \- Diesel Particulate Filter Restriction \- Ash Accumulation. U110E \- Lost Ambient Temperature Message. P205E \- \(Diesel Exhaust Fluid\) Reductant Tank Temperature Sensor CircuitIntermittent \(setting when the block heater is plugged in\). P20E8 \- \(Diesel Exhaust Fluid\) Reductant Pressure Too Low. U3017 \- Control Module Timer/Clock Performance. U1421 \- Implausible Ignition Key Off Time Received. P2281 \- Air Leak Between MAF And Throttle Body. In addition, the following software enhancements are also available: A/C pressure sensor update. wiTECH engine cooling fan actuation test update. Ambient air temperature improvements. Operational improvement for dual alternators. Selective Catalytic Reduction \(SCR\) efficiency scan tool test improvement. Fuel filter minder calibration changes. wiTECH Fuel Pressure Override and Fuel System Run Up test improvements. Exhaust Gas Recirculation \(EGR\) system improvement to help prevent freezeup. Diesel Exhaust Fluid \(DEF\) system enhancement during stationary regeneration.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2022/MC-10221481-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2022/MC-10221481-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Brakes, Driver assistance, Electrical system, Fuel system, Lighting, Backup camera

## Trouble codes named

P064F, P1C55, P202E, P205E, P20E8, P20EE, P218F, P2281, P242F, P24A5, U0001, U110E, U1421, U3017

## Vehicles listed

- 2015 RAM 3500
- 2015 RAM 4500
- 2015 RAM 5500

## Other bulletins for the same vehicles and component

- [0809614](/bulletins/10231978.md), 2023-02-21, Service bulletin: VISIBILITY; BACK OVER PREVENTION. Uconnect Access Buttons On The Rear View Mirror Are Inoperative
- [S1623000028 Rev.](/bulletins/10231735.md), 2023-02-13, Service bulletin: VEHICLE SPEED CONTROL; BACK OVER PREVENTION; POWER TRAIN; VISIBILITY; PARKING BRAKE. Outside Power Fold Rearview Mirror Noise Or Loose At Pivot. Mirror Contacts Door Window Glass In The Folded Position.
- [S1625000003 Rev.](/bulletins/10231712.md), 2023-02-13, Service bulletin: BACK OVER PREVENTION; EXTERIOR LIGHTING. Malfunction Indicator Lamp \(MIL\) Illumination. NOx Sensor Diagnostic Trouble Codes \(DTCs\) Diagnosis Information.
- [2500115](/bulletins/10229248.md), 2023-01-09, Service bulletin: BACK OVER PREVENTION; FUEL SYSTEM, GASOLINE. Diesel Exhaust Fluid \(DEF\) Level Gauge Inaccurate Or Stuck This bulletin involves verifying the correct DEF level in the tank and if necessary, replacing the DEF pump module. A small number of customers may comment that their DEF level gauge is stuck for long periods of time or is erratic. The customer may also experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation a technician may find one or more of the following Diagnostic Trouble Codes \(DTCs\). ? P203B \- Reductant Level Sensor Circuit Performance ? P203C \- \(Diesel Exhaust Fluid\) Reductant Level Sensor Circuit Low. ? P203D \- \(Diesel Exhaust Fluid\) Reductant Level Sensor Circuit High.
- [2200215](/bulletins/10229197.md), 2023-01-09, Service bulletin: ELECTRICAL SYSTEM; EXTERIOR LIGHTING; SERVICE BRAKES, HYDRAULIC; BACK OVER PREVENTION. Service Tire Pressure System Message This bulletin involves inspecting and replacing the Tire Pressure Module \(TPM\) sensor if required. The customer may notice a message ?Service Tire Pressure System? displayed on the cluster. On further inspection the technician may find the following Diagnostic Trouble Codes \(DTCs\): NOTE: The cluster will always display the low tire indicator if the tire pressure is under specification, or if there is a DTC set in the TPM system. If a DTC is set, the indicator will flash for 75 seconds and then stay on solid when the vehicle is started. ? C1501\-07 Tire Pressure Sensor 1 \- Mechanical Failure. ? C1501\-31 Tire Pressure Sensor 1 \- No Signal. ? C1502\-07 Tire Pressure Sensor 2 \- Mechanical Failure. ? C1502\-31 Tire Pressure Sensor 2 \- No Signal. ? C1503\-07 Tire Pressure Sensor 3 \- Mechanical Failure. ? C1503\-31 Tire Pressure Sensor 3 \- No Signal. ? C1504\-07 Tire Pressure Sensor 4 \- Mechanical Failure. ? C1504\-31 Tire Pressure Sensor 4 \- No Signal.
- [1807622](/bulletins/10228032.md), 2022-12-19, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); FUEL SYSTEM, GASOLINE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE; ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\); EXTERIOR LIGHTING; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\):SOFTWARE; FUEL SYSTEM, DIESEL; SERVICE BRAKES, HYDRAULIC; BACK OVER PREVENTION. Flash: Powertrain Control Module \(PCM\) Updates This bulletin involves reprogramming the Engine Control Module/Powertrain ControlModule \(ECM/PCM\) with the latest available software. Customers may experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation a technician may find one or more of thefollowing DTCs have been set: P064F \- Unauthorized Software/Calibration Detected. P202E \- \(Diesel Exhaust Fluid\) Reductant Injector Performance. P24A5 \- EGR Cooler Bypass Bank 1 Control Stuck. P1C55 \- NOx Sensor Intermittent ? Bank 1 Sensor 1. P0301 \- Cylinder 1 Misfire. P0302 \- Cylinder 2 Misfire. P0303 \- Cylinder 3 Misfire. P0304 \- Cylinder 4 Misfire. P0305 \- Cylinder 5 Misfire. P0306 \- Cylinder 6 Misfire. P020A \- Fuel Injector 1 Performance. P020B \- Fuel Injector 2 Performance. P020C \- Fuel Injector 3 Performance. P020D \- Fuel Injector 4 Performance. P020E \- Fuel Injector 5 Performance. P020F \- Fuel Injector 6 Performance. U0001 \- Can C Bus. P1451 \- Diesel Particulate Filter System Performance. P229E \- NOx Sensor Circuit \- Bank 1 Sensor 2. P218F \- Reductant No Flow Detected. P242F \- Diesel Particulate Filter Restriction \- Ash Accumulation. P205E \- \(Diesel Exhaust Fluid\) Reductant Tank Temperature Sensor CircuitIntermittent \(setting when the block heater is plugged in\). U110E \- Lost Ambient Temperature Message. P20E8 \- \(Diesel Exhaust Fluid\) Reductant Pressure Too Low. P2281 \- Air Leak Between MAF And Throttle Body. P1477 \- Intake Air Diverter Valve Position Sensor Circuit Shorted To Ground. U1421 \- Implausible Ignition Key Off Time Received. P026B \- Injection Timing Performance. In addition, the following software enhancements are also available: A/C pressure sensor update. Improvements made to reduce misfire. wiTECH engine cooling fan actuation test update. Improved Exhaust Gas Recirculation \(EGR\) valve response. Over Running Clutch \(ORC\) software improvement. Unpleasantodor in the vehicle at low speeds during regeneration cycle.
- [9003319](/bulletins/10224685.md), 2022-10-24, Service bulletin: ELECTRICAL SYSTEM; BACK OVER PREVENTION; POWER TRAIN; ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. Turbocharger, Turbo Speed Sensor, Turbo Gaskets and Seals 1. Do Not Replace Turbocharger for Exhaust Brake Operation Complaints. Do not replace the turbocharger for complaints of exhaust brake operating when the Exhaust Brake switch is off. Replacing the turbocharger will not address these complaints. Update the PCM with the new software version to correct this issue. 2. Turbo Speed Sensor is Now Serviceable. If a Turbocharger Speed Sensor is being replaced for a P2580 or any other reason, the Turbo Speed Sensor is now available separate from the Turbocharger Kit. do not replace the entire Turbocharger Kit. 2013\-2015 Chassis Cab or Pickup \- PN 68210095A$ 2007\-2012 Chassis Cab or Pickup \- PN 68039104A$. 3. Replace Exhaust Gaskets with Turbocharger Removal.\~ If turbocharger is removed/replaced, the following items are not reusable and must be replaced: Turbocharger Gasket Turbocharger Outlet Seal Turbocharger Band Clamp If the front exhaust pipe is removed/replaced, the following items are not reusable and must be replaced. Turbocharger Outlet Seal Turbocharger Band Clamp
- [18\-037\-16](/bulletins/10224625.md), 2022-10-24, Service bulletin: FUEL SYSTEM, DIESEL; SERVICE BRAKES, HYDRAULIC; FUEL SYSTEM, GASOLINE; ELECTRICAL SYSTEM; POWER TRAIN; EXTERIOR LIGHTING; BACK OVER PREVENTION; ELECTRONIC STABILITY CONTROL:AUTOMATIC \(ASC\). 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. A small number of customers may experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation a technician may find one or more of the following Diagnostic Trouble Codes \(DTCs\) set in the PCM memory: · \*\*P218F \- Reductant No Flow Detected. · P242F \- Diesel Particulate Filter Restriction \- Ash Accumulation.\*\* · P205E \- \(Diesel Exhaust Fluid\) Reductant Tank Temperature Sensor Circuit Intermittent \(setting when the block heater is plugged in\). · U110E \- Lost Ambient Temperature Message. · P20E8 \- \(Diesel Exhaust Fluid\) Reductant Pressure Too Low. · P2281 \- Air Leak Between MAF And Throttle Body. · P1477 \- Intake Air Diverter Valve Position Sensor Circuit Shorted To Ground. · U1421 \- Implausible Ignition Key Off Time Received. · P026B \- Injection Timing Performance. In addition to addressing the above DTCs, the following powertrain system improvements/enhancements are also included in this software release: · \*\*Ambient Air Temperature Improvements. · 68RFE Transmission Overall Shift Quality Improvements.\*\* · SCR Efficiency scan tool test improvement. · Charging system improvements for single alternator applications \(Changes the cutout threshold from 600 to 500 RPM\). · Diesel Exhaust Fluid \(DEF\) system calibration improvement during Stationary Regeneration. · Cold idle speed stability improvement. · Charging system improvements for dual alternator applications. · Torque increase to 865 ft/lbs \(D2 vehicles equipped with the Aisin transmission sales code DF2 only\). · Fuel Filter Minder calibration changes. · wiTECH Fuel Pressure Override and Fuel System Run Up test improvements.
- [22\-002\-15](/bulletins/10221531.md), 2022-09-26, Service bulletin: SERVICE BRAKES; EXTERIOR LIGHTING; ELECTRICAL SYSTEM; BACK OVER PREVENTION. Service Tire Pressure System Message This bulletin involves inspecting and replacing the Tire Pressure Module \(TPM\) sensor if required. The customer may notice a message ?Service Tire Pressure System? displayed on the cluster. On further inspection the technician may find the following Diagnostic Trouble Codes \(DTCs\): NOTE: The cluster will always display the low tire indicator if the tire pressure is under specification, or if there is a DTC set in the TPM system. If a DTC is set, the indicator will flash for 75 seconds and then stay on solid when the vehicle is started. ? C1501\-07 Tire Pressure Sensor 1 \- Mechanical Failure. ? C1501\-31 Tire Pressure Sensor 1 \- No Signal. ? C1502\-07 Tire Pressure Sensor 2 \- Mechanical Failure. ? C1502\-31 Tire Pressure Sensor 2 \- No Signal. ? C1503\-07 Tire Pressure Sensor 3 \- Mechanical Failure. ? C1503\-31 Tire Pressure Sensor 3 \- No Signal. ? C1504\-07 Tire Pressure Sensor 4 \- Mechanical Failure. ? C1504\-31 Tire Pressure Sensor 4 \- No Signal.
- [0805316B](/bulletins/10220438.md), 2022-09-26, Service bulletin: BACK OVER PREVENTION. Radio software enhancement.

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