# Service bulletin 1800123

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: 10244461
- Published by NHTSA: 2023\-10\-30
- Manufacturer's number: 1800123
- Manufacturer's date: 2023\-09\-23
- NHTSA component: ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); POWER TRAIN

## NHTSA's summary

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: ?\*\*P1524 \- Oil Pressure Out Of Range \- Camshaft Advance/Retard Disabled. ? P219A \- Bank 1 Air\-Fuel Ratio Imbalance.\*\* ? U0402\-00 Implausible Data Received from the TCM. \(When U0402\-00 sets in the PCM, the module will start to deny torque requests from the Transmission Control Module \(TCM\). The transmission will fault and go to a fixed gear limp\-inreaction, and send the MIL request to PCM.\) The customer may also experence the following: ? A limp mode when the DTC sets in the PCM. This bulletin involves reprogramming the PCM with the latest available software.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2023/MC-10244461-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2023/MC-10244461-9999.pdf)

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

## Components

Electrical system, Transmission and driveline, Automatic transmission, Transmission control module

## Trouble codes named

P1524, P219A, U0402

## Vehicles listed

- 2022 RAM 1500

## Other bulletins for the same vehicles and component

- [S2309000012](/bulletins/10248869.md), 2024-01-16, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); ELECTRICAL SYSTEM. Mil\-On/Check Engine Lamp\-On with DTC P06DD set in the powertrain control module \(PCM\).
- [S2321000009](/bulletins/10248859.md), 2024-01-16, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER. Malfunction Indicator Lamp \(MIL\) Illuminated. Active Diagnostic Trouble Code \(DTC\) P1DB7\-00 ? Torque Converter Clutch Performance, Set.
- [1800123](/bulletins/10248622.md), 2024-01-08, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); ELECTRICAL SYSTEM. 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: ?\*\*P1524 \- Oil Pressure Out Of Range \- Camshaft Advance/Retard Disabled. ? P219A \- Bank 1 Air\-Fuel Ratio Imbalance.\*\* ? U0402\-00 Implausible Data Received from the TCM. \(When U0402\-00 sets in the PCM, the module will start to deny torque requests from the Transmission Control Module \(TCM\). The transmission will fault and go to a fixed gear limp\-inreaction, and send the MIL request to PCM.\) The customer may also experence the following: ? A limp mode when the DTC sets in the PCM. This bulletin involves reprogramming the PCM with the latest available software.
- [1809823](/bulletins/10248600.md), 2024-01-08, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); ELECTRICAL SYSTEM. Flash: Powertrain Control Module \(PCM\) Update 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: ?P1524 \- Oil Pressure Out Of Range \- Camshaft Advance/Retard Disabled. ? P219A \- Bank 1 Air\-Fuel Ratio Imbalance. This bulletin involves reprogramming the PCM with the latest available software.
- [S2321000009](/bulletins/10248583.md), 2024-01-08, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\). MIL On with TCM P1DB7 Active
- [1809823](/bulletins/10244439.md), 2023-10-30, Service bulletin: ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); POWER TRAIN. Flash: Powertrain Control Module \(PCM\) Update 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: ?P1524 \- Oil Pressure Out Of Range \- Camshaft Advance/Retard Disabled. ? P219A \- Bank 1 Air\-Fuel Ratio Imbalance. This bulletin involves reprogramming the PCM with the latest available software.
- [S2321000009](/bulletins/10244422.md), 2023-10-30, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); ELECTRICAL SYSTEM. MIL On with TCM P1DB7 Active
- [1808523](/bulletins/10243235.md), 2023-10-02, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); ELECTRICAL SYSTEM. Flash: Powertrain Control Module \(PCM\) Updates This bulletin involves reprogramming the PCM with the latest available software.
- [S2308000100](/bulletins/10243168.md), 2023-10-02, Service bulletin: STRUCTURE:BODY:HOOD; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\). Multiple Warning Lights, Sealer Between Ground Stud G908A And Eyelet
- [1803723](/bulletins/10242821.md), 2023-09-25, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); ELECTRICAL SYSTEM. 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 DTCs have been set: ? P2097 \- Downstream Fuel Trim System 1 Rich. ? P2099 \- Downstream Fuel Trim System 2 Rich.\*\* The customer may experience the following: ? Lack power/responsiveness for the first couple of minutes or about 90 seconds after a cold start and later performs as expected. This bulletin involves reprogramming the PCM with the latest available software.

JSON: [/v1/bulletins/10244461](/v1/bulletins/10244461)

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