Airbag control unit with part number 04602315AB

What is the function of the airbag control unit 04602315AB?

The airbag control unit 04602315AB is the central control module for the occupant safety system (SRS) in models such as the Chrysler Cirrus JA and Chrysler Stratus JX. It processes signals from the acceleration sensors and, within milliseconds, determines whether to deploy airbags and tighten seat belts, thereby maximizing occupant safety in the event of a crash.

As the brain of the passive safety system, this component continuously monitors all connected components—from airbag igniters and seatbelt pretensioners to crash sensors. Any irregularity in the system is detected and signaled to the driver via the airbag warning light.

The proper functioning of this control unit is critical for safety. A failure or malfunction disables the entire airbag system, leaving vehicle occupants without protection in the event of a collision.

Why does the airbag control unit 04602315AB fail?

The most common causes of failure for the control unit 04602315AB are internal hardware defects, often indicated by error code B1015 (internal malfunction), as well as stored crash data following an accident. These issues block the device’s functionality and prevent subsequent airbag deployment, necessitating professional electronic repair.

A primary defect is internal hardware failure, which can result from aging electronic components, overvoltage, or thermal stress. An error code like B1015 stored in the fault memory directly points to an irreversible internal hardware fault, making component-level repair unavoidable.

After a crash, the control unit stores so‑called crash data. This entry is permanent and locks the device to prevent unintended deployment after the accident. Such data cannot be erased using standard diagnostic tools and requires a specialized procedure to reset both software and hardware.

Other causes include communication failures with the diagnostic tool, water damage, or the general error code 65535, which also indicates an internal defect. It’s important to note that similar part numbers, such as 4606028, may serve as alternative OEM identifiers for the same control unit in the Chrysler Cirrus JA.

How do you recognize a defect in the control unit 04602315AB?

A defect in the control unit 04602315AB primarily manifests as a permanently illuminated or flashing SRS/airbag warning light on the instrument panel. Often, the control unit can no longer be read by a diagnostic tool due to lack of communication. This signals an immediate safety risk, as airbags will not deploy in an emergency.

The clearest symptom is the active airbag warning light upon engine start-up. If it remains lit continuously, the system indicates a serious fault and has deactivated the airbag functions for safety.

Another clear sign is when a professional workshop’s diagnostic tool cannot access the airbag control unit. Such a communication failure usually points to a severe internal fault in the control electronics.

In any case, if the airbag warning light is on, an immediate inspection at a qualified workshop is essential. Continuing to drive poses a significant safety risk, as the restraint system would provide no occupant protection in the event of a crash.

In which vehicles is the control unit 04602315AB installed?

The airbag control unit with part number 04602315AB is specifically found in late‑90s Chrysler vehicles. At Airbag24, we professionally repair this control unit for the Chrysler Cirrus JA models (model years 1995–2000) and the Chrysler Stratus JX.

At Airbag24, we specialize in repairing part number 04602315AB for the following specific models:

Chrysler Cirrus JA (1995–2000)

Chrysler Stratus JX

Even if your exact model isn’t listed here, compatibility may still exist. Comparing part number 04602315AB or its alternative 4606028 with the removed unit will clarify this.

How does the repair of the control unit 04602315AB proceed?

Repair at Airbag24 is a systematic process that begins with the submission of the removed unit. Following a detailed electronic analysis, the root causes—such as stored crash data or defective hardware components—are precisely addressed. Finally, the control unit is tested and returned with 2 years' statutory liability for defects.

Upon receipt at Airbag24, the control unit undergoes a comprehensive initial inspection. Our technicians analyze the fault memory and examine internal circuits, power supply, and processor data to pinpoint the exact source of the problem.

Depending on the diagnosis, the necessary repair steps are carried out. This includes professionally erasing crash data from the memory and replacing defective electronic components on the circuit board, such as processors, memory chips, or capacitors.

After successful repair, the control unit is tested on a specialized test bench to simulate and verify the flawless operation of all system components. Each repair comes with 2 years' statutory liability for defects.