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DODGE

08-241-26

Manufacturer communications

Publication date
2026-06-16
Received by NHTSA
2026-07-02
NHTSA record numbers
11034318

Manufacturer summary

Original wording in English

Flash: Auxiliary Hybrid Control Processor Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs):
• P2601-00 - Electric Coolant Pump Control Circuit Performance Stuck Off.
• U0623-00 - Lost Communication With Coolant Pump "A".
• P1DBA - Battery Cooling System Failure (Module, Hybrid Control Processor (HCP)). Customers may experience the following:
• The vehicle is not performing a scheduled cabin preconditioning. 'Cabin Preconditioning Unavailable' message present in the Instrument Panel Cluster (IPC) when the scheduled cabin condition is not performed as planned. *This bulletin involves reprogramming the Auxiliary Hybrid Control Processor (AHCP) and Hybrid Control Processor (HCP) with the latest available software.*

NHTSA manufacturer communications ↗

Reported code forms

P1DBAP2601U0623

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
DodgeHORNET2024

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