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Powertrain

P249C

Code meaning and manufacturer information

OBD-II / DTC

Reference meaning

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.

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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Manufacturer wording

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

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Manufacturer communications

65

Original wording in English

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18-060-24 ↗

JEEP

"Flash: Powertrain Control Module (PCM) Updates **Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P2463 - Particulate Filter Restriction - Soot Accumulation Bank 1. (EE Market Only)** ● P016F - Closed Loop F…

24-NA-020 ↗

CADILLAC, CHEVROLET, GMC

This service bulletin provides a repair procedure to correct customer concerns of Service Emissions System Displayed on DIC, MIL Illuminated with DTC P249C and/or P20E8 Set.

24-NA-020 ↗

CADILLAC, CHEVROLET, GMC

This service bulletin provides a repair procedure to correct customer concerns of Service Emissions System Displayed on DIC, MIL Illuminated with DTC P249C and/or P20E8 Set.

18-002-23 ↗

RAM

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: **P2183 - Engine Coolant Temperature Sensor 2 Circuit Performance. P016F - Cl…

Check vehicle applicability

262

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

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MakeModelModel year
AudiA3 CABRIOLET ↗2015
CadillacESCALADE ↗2024
CadillacESCALADE ↗2023
CadillacESCALADE ↗2022
CadillacESCALADE ↗2021
CadillacESCALADE ESV ↗2023
CadillacESCALADE ESV ↗2022
CadillacESCALADE ESV ↗2021

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.