Ford Grand C-Max Mk2 Airbag Control Unit Repair

What is a Ford Grand C-Max Mk2 airbag control unit?

The Ford Grand C-Max Mk2 airbag control unit is your vehicle's central safety unit, precisely activating all occupant restraint systems, such as airbags and seatbelt pretensioners, in the event of an accident. It continuously monitors sensor data, stores important crash information, and ensures the proper functioning of all associated safety modules for your safety.

This sophisticated electronic component is essential for Ford's Intelligent Protection System (IPS). It coordinates the interaction of sensors and actuators to optimally protect occupants.

Why is the Ford Grand C-Max Mk2 airbag control unit faulty?

A Ford Grand C-Max Mk2 airbag control unit can malfunction because it stores crash data after an accident, requiring a reset, or it can be damaged by internal electronic errors such as short circuits and voltage spikes. A malfunction can also be triggered by low voltage or defective sensors, making repair or replacement necessary.

The control unit is often no longer usable after an accident, even if it appears to be intact. It stores so-called crash data that prevents the airbag system from being deployed again.

Internal electronic errors are another common cause of failure. These can damage components within the control unit itself, making proper diagnosis difficult.

An unstable power supply or severe battery voltage fluctuations can also affect the sensitive control unit. Such problems often lead to sporadic or permanent errors in the airbag system.

A quick diagnosis at a specialist workshop is crucial to determine the exact cause of a faulty Ford Grand C-Max Mk2 airbag control unit and ensure a safe repair. If any faults are found, you should visit a workshop immediately.

Common error codes for Ford Grand C-Max Mk2 airbag control unit repair

When diagnosing a faulty Ford Grand C-Max Mk2 airbag control unit, specific trouble codes may occur that indicate internal malfunctions, communication issues, or warning indicator malfunctions. These codes are crucial for accurately identifying the problem and successfully repairing the Ford Grand C-Max Mk2 airbag control unit.

• B1342 → Airbag control unit defective → Internal error or damage to the ECU.
• B1000 → Control unit communication error → Interruption of the data connection to the airbag ECU.
• B66535 → Control unit function faulty → Malfunction of the internal software or hardware.
• B1869 → Airbag warning indicator open or short to ground → Fault in the wiring or internal to the control unit.
• B1870 → Airbag warning indicator short circuit to battery → Excessive voltage on the warning indicator line.
• B1891 → Airbag control unit internal error (short circuit to battery) → Internal short circuit within the control unit.
• C1414 → Incorrect module design level → Incompatible or incorrectly programmed airbag ECU.

What part numbers are available for the Ford Grand C-Max Mk2 airbag control unit repair?

For the Ford Grand C-Max Mk2 airbag control unit repair, various original OEM part numbers are relevant to ensure compatibility with your vehicle model. These numbers identify the correct control unit and are crucial for a successful replacement or reset to restore full functionality of the safety system.

• Original OEM part numbers for the Ford Grand C-Max Mk2 airbag control unit include:
• DM5T14B321SA (Ford / Bosch)
• 0285011577 (Bosch reference for DM5T14B321SA)
• DM5T14B321EH (Ford)
• DM5T14B321RA (Ford)
• AM5T14B321AG (Ford)
• F1CT14B321RC (Ford)
• 1790083 (Ford)

These numbers are specifically validated for the airbag control unit of the Ford Grand C-Max Mk2 (second generation, from approximately 2013) and C-Max II (DXA). They ensure that the replacement part fits your vehicle model exactly.