# Service bulletin S2108000099

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: 10194009
- Published by NHTSA: 2021\-05\-24
- Manufacturer's number: S2108000099
- Manufacturer's date: 2021\-04\-21
- NHTSA component: INTERIOR LIGHTING

## NHTSA's summary

CEL \(Check Engine Lamp\) Lamp On, No Apparent Drivability Complaints

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10194009-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10194009-9999.pdf)

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

## Components

Lighting

## Vehicles listed

- 2019 to 2020 RAM 1500

## Recalls for the same vehicles and component

- [2019365](/recalls/tc/2019365.md), 2019-07-25: Lights And Instruments

## Other bulletins for the same vehicles and component

- [S2025000001](/bulletins/10247967.md), 2024-01-02, Service bulletin: EXTERIOR LIGHTING; BACK OVER PREVENTION. Malfunction Indicator Lamp Illumination \(MIL\). Diagnostic Trouble Code \(DTC\) P203E ? Reductant Level Sensor 1 Circuit Intermittent\-Erratic Set.
- [93446](/bulletins/10244428.md), 2023-10-30, Service bulletin: EXTERIOR LIGHTING; EQUIPMENT. FCA Caribbean Warranty Bulletin ID\-23\-21 \(XL1\) Backlite Select 2019 \- 2021 RAM 1500 Pickup \(DT\)
- [91745](/bulletins/10241046.md), 2023-08-21, Service bulletin: EXTERIOR LIGHTING:TAIL LIGHTS; UNKNOWN OR OTHER. FCA Caribbean Warranty Bulletin ID\-23\-13 \(XG1\) Center High Mounted Stop Lamp \(CHMSL\) \- Select 2019 \- 2021 RAM 1500 Pickup \(DT\)
- [91742](/bulletins/10241045.md), 2023-08-21, Service bulletin: EXTERIOR LIGHTING:TAIL LIGHTS; UNKNOWN OR OTHER. Warranty Bulletin D\-23\-11 \(XG1\) Center High Mounted Stop Lamp \(CHMSL\) \- Select 2019 \- 2021 RAM 1500 Pickup \(DT\)
- [S2025000001](/bulletins/10234440.md), 2023-04-17, Service bulletin: BACK OVER PREVENTION; EXTERIOR LIGHTING. Malfunction Indicator Lamp Illumination \(MIL\). Diagnostic Trouble Code \(DTC\) P203E ? Reductant Level Sensor 1 Circuit Intermittent\-Erratic Set.
- [18\-002\-23](/bulletins/10231770.md), 2023-02-13, Service bulletin: FUEL SYSTEM, DIESEL; ENGINE AND ENGINE COOLING; EXTERIOR LIGHTING; ELECTRICAL SYSTEM; BACK OVER PREVENTION; FUEL SYSTEM, GASOLINE; SERVICE BRAKES, HYDRAULIC; PARKING BRAKE. Flash: Powertrain Control Module \(PCM\) Updates Customers may experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation the technician may find that one or more of the following Diagnostic Trouble Codes \(DTCs\) have been set: \*\*P2183 \- Engine Coolant Temperature Sensor 2 Circuit Performance. P016F \- Closed Loop Fuel Pressure Control At Limit \- Pressure Too Low. P025C \- Fuel Pump Module Control Circuit Low. P208B \- Reductant Pump 1 Control Performance. P0403\-00 \- EGR Control Circuit Open ? Disabled Fault.\*\* P225D\-00 \- NOX Sensor 1/1 Performance Signal Stuck Low. P249C\-00 \- Excessive Time To Enter Closed Loop Reductant Injection Control. P065A \- Generator System Performance. P00F4\-00 \- Humidity Sensor Circuit Low. P20FB\-00 \- Reductant Pump 2 Control Performance. P200A\-00 \- Intake Manifold Runner Performance Bank 1. P200B\-00 \- Intake Manifold Runner Performance Bank 2. P2610 \- PCM Internal Engine Off Timer Performance. P015E \- Excessive Time to Enter Closed Loop Fuel Timing Control. P0534\-00 \- AC Refrigerant System A Charge Loss. P26FB\-00 \- EGR Cooler Bypass Control Stuck Closed Bank 1. P04DB\-00 \- Crankcase Ventilation System Disconnected. P204F\-00 \- Reductant System Performance. P2D2D\-00 \- Cold Start Intake Manifold Runner Performance Bank 1. P2D2E\-00 \- Cold Start Intake Manifold Runner Performance Bank 2. P2199\-00 \- Intake Air Temperature Sensor 1/2 Correlation. P22FA\-00 \- NOX Sensor Performance Slow Response High To Low Bank 1 Sensor 1. P2002\-00 \- Diesel Particulate Filter Efficiency Below Threshold. P0087\-00 \- Fuel Rail Pressure Too Low. P0128\-00 \- Thermostat Rationality \(additional software enhancement\). P0300\-00 \- Multiple Cylinder Misfire \(cold ambient temperature\). P0301\-00 \- Cylinder 1 Misfire \(cold ambient temperature\). P0302\-00 \- Cylinder 2 Misfire \(cold ambient temperature\). P0303\-00 \- Cylinder 3 Misfire \(cold ambient temperature\). P0304\-00 \- Cylinder 4 Misfire \(cold ambient temperature\). P0305\-00 \- Cylinder 5 Misfire \(cold amb
- [S2318000002](/bulletins/10231738.md), 2023-02-13, Service bulletin: EXTERIOR LIGHTING. Malfunction Indicator Lamp \(MIL\) Illumination. Intake Manifold Runner Valve Diagnostic Trouble Codes \(DTCs\) Setting In Extreme Cold Ambient Temperatures.
- [S2123000057](/bulletins/10230207.md), 2023-01-17, Service bulletin: EXTERIOR LIGHTING:TAIL LIGHTS; EQUIPMENT. Tail lamp Is Tight To The Pickup Box In Upper Inboard Corner
- [S1925000008](/bulletins/10230204.md), 2023-01-17, Service bulletin: EXTERIOR LIGHTING; FUEL SYSTEM, GASOLINE; SERVICE BRAKES, HYDRAULIC. Malfunction Indicator Lamp \(MIL\) Illumination. Diagnostic Trouble Codes \(DTCs\) P208B ? Reductant Pump 1 Control Performance, and/or P20E8 ? Reductant Pressure Too Low, Set.
- [1800821](/bulletins/10230117.md), 2023-01-17, Service bulletin: ELECTRICAL SYSTEM; BACK OVER PREVENTION; FUEL SYSTEM, GASOLINE; EXTERIOR LIGHTING; SERVICE BRAKES, HYDRAULIC; FUEL SYSTEM, DIESEL. 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 the technician may find that one or more of the following DTCs have been set: P225D\-00 \- Nox Sensor 1/1 Performance \- Signal Stuck Low. P249C\-00 \- Excessive Time to Enter Closed Loop Reductant Injection Control. P065A \- Generator System Performance. P00F4\-00 \- Humidity Sensor Circuit Low. Improved VGT cleaning to reduce false failures for P00AF field issue. P0106\-00 \- Manifold Absolute Pressure Sensor Performance. P20FB\-00 \- Reductant Pump 2 Control Performance. P200A\-00 \- Intake Manifold Runner Performance \- Bank 1. P200B\-00 \- Intake Manifold Runner Performance \- Bank 2. P2610 \- PCM Internal Engine Off Timer Performance. Change DTC number from P0101\-00 to P0109\-00 \- Mass Air Flow Sensor Performance. P015E \- Excessive Time to Enter Closed Loop Fuel Timing Control. P0534\-00 \- AC Refrigerant System A Charge Loss. P26FB\-00 \- EGR Cooler Bypass Control Stuck Closed Bank 1. P04DB\-00 \- Crankcase Ventilation System Disconnected. P204F\-00 \- Reductant System Performance. P2D2D\-00 \- Cold Start Intake Manifold Runner Performance Bank 1. P2D2E\-00 \- Cold Start Intake Manifold Runner Performance Bank 2. P2199\-00 \- Intake Air Temperature Sensor 1 / 2 Correlation. P22FA\-00 \- NOX Sensor Performance \- Slow Response High to Low Bank 1 Sensor 1. P2002\-00 \- Diesel Particulate Filter Efficiency Below Threshold. P0087\-00 \- Fuel Rail Pressure Too Low. P0128\-00 \- Thermostat Rationality \(additional software enhancement\). P0300\-00 \- Multiple Cylinder Misfire \(cold ambient temperature\). P0301\-00 \- Cylinder 1 Misfire \(cold ambient temperature\). P0302\-00 \- Cylinder 2 Misfire \(cold ambient temperature\). P0303\-00 \- Cylinder 3 Misfire \(cold ambient temperature\). P0304\-00 \- Cylinder 4 Misfire \(cold ambient temperature\). P0305\-00 \- Cylinder 5 Misfire .

JSON: [/v1/bulletins/10194009](/v1/bulletins/10194009)

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