# Service bulletin 1804923

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: 10236964
- Published by NHTSA: 2023\-05\-30
- Manufacturer's number: 1804923
- Manufacturer's date: 2023\-04\-18
- NHTSA component: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); ELECTRICAL SYSTEM

## NHTSA's summary

Flash: Powertrain Control Module \(PCM\) Updates

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2023/MC-10236964-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2023/MC-10236964-9999.pdf)

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

## Components

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

## Vehicles listed

- 2022 JEEP WRANGLER

## 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 \(PCM\).
- [S2321000005](/bulletins/10248561.md), 2024-01-08, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION. Transmission Fluid Leak From Under The Vehicle.
- [S2321000005](/bulletins/10244400.md), 2023-10-30, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION; POWER TRAIN:AUTOMATIC TRANSMISSION:FLUID/LUBRICANT. Transmission Fluid Leak From Under The Vehicle.
- [1804923](/bulletins/10241086.md), 2023-08-21, Service bulletin: ELECTRICAL SYSTEM; POWER TRAIN; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\). Flash: Powertrain Control Module \(PCM\) Updates Customers may experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation the technician may find that the one or more of the following Diagnostic Trouble Codes \(DTCs\) have been set: ? \*\*P02EE \- Cylinder 1 Injector Circuit Performance. China only. ? P02EF \- Cylinder 2 Injector Circuit Performance. China only. ? P02F0 \- Cylinder 3 Injector Circuit Performance. China only. ? P02F1 \- Cylinder 4 Injector Circuit Performance. China only.\*\* ? P2B95 \- Cold Start Injection Pulse Performance. ? P152E \- Engine Hood Switch Two Circuit High. ? P152F \- Engine Hood Switch Two Engine Hood Switch One Correlation. The customer may also comment on the following: ? ?Performance Limited Service Fuel System? message in the Instrument Panel Cluster \(IPC\). This bulletin involves reprogramming the PCM with the latest available software.
- [S2325000006](/bulletins/10241022.md), 2023-08-21, Service bulletin: ENGINE AND ENGINE COOLING; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\). Customer complaint may include a MIL\-on or check engine lamp on condition.
- [1815322](/bulletins/10230550.md), 2023-01-23, Service bulletin: ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\). Powertrain Control Module \(PCM\) Updates
- [S2207000002](/bulletins/10229470.md), 2023-01-09, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:COOLER/RADIATOR:HOSES AND FITTINGS; UNKNOWN OR OTHER. Coolant leak
- [1814122](/bulletins/10225434.md), 2022-10-31, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\). 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 the following Diagnostic Trouble Code \(DTC\): P2100 \- Electronic Throttle Control Motor Circuit.
- [9100022](/bulletins/10225302.md), 2022-10-31, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:COOLER/RADIATOR:HOSES AND FITTINGS; FUEL SYSTEM, GASOLINE; EQUIPMENT:ELECTRICAL:ENGINE BLOCK HEATER. Water Pump For concern of leak at water pump, please check and re\-torque water pump inlet tube fasteners as described in Service Bulletin 07\-001\-22 before replacing the water pump.
- [2102922](/bulletins/10225289.md), 2022-10-31, Service bulletin: ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); POWER TRAIN; ELECTRICAL SYSTEM:SOFTWARE; EXTERIOR LIGHTING. Flash: Transmission Control Module \(TCM\) Updates This bulletin involves reprogramming the TCM with the latest available software. Customers may experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation the technician may find the following Diagnostic Trouble Code \(DTC\). P0701 Transmission Control System Range/Performance.

JSON: [/v1/bulletins/10236964](/v1/bulletins/10236964)

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