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August 29, 2023 Service bulletin

Powertrain Control Module (PCM) Replacement Customers may experience a Malfunction Indicator Lamp (MIL)...

Jeep technical service bulletin 1809723 for 2021-2022 Jeep Renegade.

Bulletin number
1809723
Component
Electrical system
Summary
Powertrain Control Module (PCM) Replacement Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs): ? U0100-00 - Lost Communication with Engine Control Module (ECM). ? U1701-87 - Engine Control Module (ECM) - Missing message. Customer may also experience: ? Vehicle no start condition. This bulletin involves replacement of the PCM for a possible no start condition.

Owners of these vehicles have filed 41 complaints in the electrical category.

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