HomeP203C · Code meaning and manufacturer information
Powertrain

P203C

Code meaning and manufacturer information

P203C

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.

RamP203C
(Diesel Exhaust Fluid) Reductant Level Sensor Circuit Low ·

NHTSA 10140163

Manufacturer communications

20

Original wording in English

1813022REVA

RAM

Reported code forms P203C

Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the Engine Control Module/Powertrain Control Module (ECM/PCM) with the latest available software. The customers may experience a…

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1813022REVA

RAM

Reported code forms P203C

Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the Engine Control Module/Powertrain Control Module (ECM/PCM) with the latest available software. The customers may experience a…

Read communication ↗

1800322

RAM

Reported code forms P203C

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…

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1802321

RAM

Reported code forms P203C

Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the Engine Control Module/Powertrain Control Module (ECM/PCM) with the latest available software. The customers may experience a…

Read communication ↗

18-023-21

RAM

Reported code forms P203C

Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the Engine Control Module/Powertrain Control Module (ECM/PCM) with the latest available software. The customers may experience a…

Read communication ↗

SSM73728

JAGUAR

Reported code forms P203C

Issue: The customer is unable to start their vehicle or a warning message displayed on the Instrument Cluster "Re-start will not be possible in xxxx miles". Any of the following DTC's may have been triggered: P203B,…

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Check vehicle applicability

20

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

MakeModelModel year
JaguarE-PACE2018
JaguarF-PACE2018
JaguarF-PACE2017
JaguarXE2018
JaguarXE2017
JaguarXF2018
JaguarXF2017
JaguarXF2016
Ram25002016
Ram25002015
Ram25002014
Ram35002016
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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.