HomeP0394 · Code meaning and manufacturer information
Powertrain

P0394

Code meaning and manufacturer information

P0394

What does this code mean?

The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.

A code identifies a detected condition, not a part that must automatically be replaced.

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A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.

Manufacturer wording

Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.

Manufacturer communications

7

Original wording in English

1810320

JEEP

Reported code forms P0394

Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the Powertrain Control Module (PCM) with thelatest available software. The customer may experience a Malfunction Indicator Lamp (MIL)…

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18-103-20

JEEP

Reported code forms P0394

Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the Powertrain Control Module (PCM) with thelatest available software. The customer may experience a Malfunction Indicator Lamp (MIL)…

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18-002-19 REV A

CHRYSLER

Reported code forms P0394

Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. A customer or technicians may be unable to read data information from the OBDII connector…

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TSB 18-2360

FORD

Reported code forms P0394

Some 2018 F-150 and 2018-2019 Mustang vehicles equipped with a 5.0L engine may exhibit an illuminated MIL with DTCs P0390 and/or P0394 stored in the powertrain control module (PCM). Follow the Service Procedure steps to…

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SSM 47441

FORD

Reported code forms P0394

Some 2018 F-150 vehicles equipped with a 5.0L engine may exhibit an illuminated MIL with DTCs P0390 and/or P0394. These DTCs may be caused by low engine oil level. Before performing any diagnosis or repair, make sure…

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1806917

CHRYSLER

Reported code forms P0394

Flash: Powertrain Diagnostic and System Enhancements This bulletin involves reprogramming the Powertrain Control Module (PCM) with thelatest available software. Customers may experience a Malfunction Indicator Lamp…

Read communication ↗

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Check vehicle applicability

79

A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.

MakeModelModel year
ChryslerCHRYSLERYear not specified
ChryslerPACIFICA2017
DodgeDODGEYear not specified
DodgeRAM 15002012
DodgeRAM 15002011
DodgeRAM 15002010
DodgeRAM 25002012
DodgeRAM 25002011
DodgeRAM 25002010
DodgeRAM 35002012
DodgeRAM 35002011
DodgeRAM 35002010
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Before replacing a part

Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.

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Can I keep driving?

A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.