RAM
08-093-22 REV. B
Manufacturer communications
- Publication date
- 2022-12-02
- Received by NHTSA
- 2023-01-17
- NHTSA record numbers
- 10229790
Manufacturer summary
Original wording in English
Flash: Hybrid Control Processor (HCP) Updates This bulletin involves updating the HCP with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more ofthe following DTCs have been set: U0402-00 - Implausible Data Received From TCM. P1C64 - Hybrid Perf - Engine Speed Below Target During Autostart. In addition, the following software enhancement is available: Engine Stop/Start (ESS) improvements - Improvements to make ESS more smooth/consistent. Customers may complain of rough or inconsistentautostarts. The customer may also describe one or more of the following: Coast down engine idle improvements (related to two-foot driving below 19kph (12 mph). During an ESS event, the autostart fails and the AutoPark engages. Transmission is in Limp Mode.
Reported code forms
Manufacturer wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
Ram
P1C64Hybrid Perf - Engine Speed Below Target During AutostartRam
U0402-00Implausible Data Received From TCMCheck vehicle applicability
A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Ram | 1500 | 2022 |