Airbag control unit with part number P04672603AE

What is the function of the airbag control unit P04672603AE?

The airbag control unit P04672603AE is the central control module of the passive safety system in the Dodge Caliber. It processes signals from the acceleration sensors to deploy the airbags and seatbelt pretensioners precisely and at the exact right moment in the event of a crash, thereby protecting the occupants.

As the “brain” of the restraint system, it determines within milliseconds whether and how intensely the safety components should be activated. Therefore, its flawless operation is a vital element for vehicle safety in accidents.

Why does the control unit P04672603AE fail?

The most common causes of failure for the control unit P04672603AE are stored crash data after an accident, which prevent further functionality. Additional defects arise from water damage leading to corrosion, as well as general electronic malfunctions or internal board-level errors that disrupt communication.

One of the primary reasons for failure is the storage of crash data. After a collision, the control unit locks itself internally to prevent unintended re‑activation. This condition must be professionally reset.

Infiltrating moisture is also a critical factor. Water damage often results in corrosion on the circuit board and connectors, causing short circuits and component failures.

Furthermore, internal electronic faults can occur. Defects in individual components on the board impair data processing and may lead to complete device failure, often manifesting as a lack of communication with the diagnostic tester.

How do you recognize a defect in the P04672603AE?

A defect in the airbag control unit P04672603AE typically becomes apparent through the permanently illuminated airbag warning light on the instrument cluster. Another clear symptom is when the control unit can no longer be accessed via the OBD interface and fails to communicate with a diagnostic tool.

The most obvious sign of a problem is the red airbag warning light. It does not turn off after starting the vehicle, indicating that the entire restraint system might be disabled.

In the workshop, the defect often shows up as inability to access the airbag system’s fault memory. The diagnostic tool then typically reports “No communication with the control unit,” making precise fault analysis difficult.

In which vehicles is the control unit P04672603AE installed?

The airbag control unit with part number P04672603AE is specifically designed for the Dodge Caliber PM series. At Airbag24, we repair this component for models manufactured between 2006 and 2009, as well as for the facelifted versions produced from 2009 to 2011.

Compatibility covers most production years of the Dodge Caliber. Specifically, we support repairs for the following variants:

Dodge Caliber PM series, built from 2006 to 2009.

Dodge Caliber PM series facelift, built from 2009 to 2011.

How is the control unit P04672603AE professionally repaired?

After being sent to Airbag24, the control unit P04672603AE undergoes a detailed incoming inspection. Repair includes eliminating the root cause of the fault—such as professionally resetting crash data or fixing electronic defects. Finally, full functionality is verified, and 2 years' statutory liability for defects is provided.

The repair process at Airbag24 is designed to restore the original factory specifications. First, the unit is analyzed to pinpoint the exact source of the issue—whether it’s a data‑storage problem or a hardware defect.

Subsequently, professional restoration takes place. Stored crash data is safely erased, and any lockout of the control unit is lifted. For electronic malfunctions, defective components on the circuit board are replaced with high‑quality parts.

If a repair is technically impossible, a remanufactured and tested replacement control unit is often available. Every repair performed comes with 2 years' statutory liability for defects.