Home1804421 · JEEP
JEEP

1804421

Manufacturer communications

Publication date
2021-05-05
Received by NHTSA
2022-10-17
NHTSA record numbers
10223322 · 10223479 · 10230094

Multiple filings of the same bulletin are grouped here; original record numbers remain available.

Manufacturer summary

Original wording in English

Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the Powertrain Control Module (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 Codes (DTCs) have been set: P1D7F-00 - ETC Self-Learning Failure.(North America only). P0456-00 - EVAP Purge System Small Leak.(North America only). P0441-00 - EVAP Purge System Performance.(North America only). P0440-00 - General EVAP System Failure. (North America only). P0455-00 - EVAP Purge System Large Leak.(North America only). P1CEA-00 - Boost Side EVAP Purge System Performance.(North America only). In addition, the following software enhancement is available: After a short trip and shutting the engine off for 5-10 minutes, vehicle exhibits a long crank/start condition(EMEA only). Updated EVAP system diagnostics.(North America only).

NHTSA manufacturer communications ↗

Reported code forms

P0440P0441P0455P0456P1CEAP1D7F

Manufacturer wording

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

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MakeModelModel year
JeepRENEGADE2018

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