What is a Mitsubishi Lancer CC airbag control unit?
The Mitsubishi Lancer CC airbag control unit is the central safety unit of the Supplemental Restraint System (SRS), which is crucial for occupant safety. It continuously monitors all crash sensors and seat occupancy sensors. In the event of an accident, it precisely and rapidly controls the deployment of the airbags and seatbelt pretensioners to minimize injuries.
This electronic control unit, often referred to as the airbag ECU, forms the heart of your Mitsubishi Lancer CC's passive safety system. It is responsible for processing all signals from the vehicle's sensors in real time.
Its main task is to trigger the pyrotechnic restraint systems, such as front, side, and knee airbags, as well as the seatbelt pretensioners, when necessary. This occurs within milliseconds of detecting a critical impact.
The control unit also features a comprehensive self-diagnostic function. System errors are immediately detected and signaled via the SRS warning light in the instrument cluster, requiring immediate diagnosis.
Why is the Mitsubishi Lancer CC airbag control unit defective?
A Mitsubishi Lancer CC airbag control unit often fails because it irreversibly stores crash data after an accident and then blocks it. It can also be damaged by internal electronic errors, overvoltage in the vehicle electrical system, or moisture, necessitating a Mitsubishi Lancer CC airbag control unit repair.
After an airbag is deployed, the control unit stores specific crash data, rendering it unusable without a professional reset. This data prevents the system from functioning to ensure safe reuse.
Internal component failures or age-related wear can also lead to control unit failure. This often manifests itself in the form of a permanently illuminated airbag warning light or specific error codes.
External influences such as water damage, short circuits, or improper repair attempts can also cause irreparable damage to the sensitive module. Early diagnosis can prevent major problems.
Common error codes for Mitsubishi Lancer CC airbag control unit repair
When repairing a Mitsubishi Lancer CC airbag control unit, certain OBD-II B codes indicate problems with the control unit itself, not with sensors or belts. These trouble codes indicate internal defects, communication problems, or stored crash data and must be read for successful diagnosis and repair.
- **B1000**: Control unit communication error → Signal loss or internal defect in the airbag ECU → Mitsubishi Lancer CC airbag control unit
- **B1015**: Faulty airbag control unit → Internal malfunction or damage of the airbag ECU hardware → Mitsubishi Lancer CC airbag control unit
- **B1139**: SRS module (control unit) error → SRS control unit general malfunction → Mitsubishi Lancer CC airbag control unit
- **B1193**: Airbag module related error → Internal error in the airbag control module → Mitsubishi Lancer CC airbag control unit
- **B1206**: Airbag RCM (Restraint Control Module) Error → Problem in the restraint system control module → Mitsubishi Lancer CC airbag control module
- **B1342**: SRS system error (airbag control unit) → SRS control unit system-wide error → Mitsubishi Lancer CC airbag control unit
- **B1620**: SRS control unit error → Specific hardware or software error in the airbag control unit → Mitsubishi Lancer CC airbag control unit
- **B1649**: Crash detected – Airbag control unit error code → Crash data stored after an accident → Mitsubishi Lancer CC Airbag control unit
These specific error codes directly signal a problem with the airbag control unit itself. They require professional diagnostics to pinpoint the exact cause and perform a targeted Mitsubishi Lancer CC airbag control unit repair.
Simply clearing the codes is often not enough if the underlying cause is not addressed. Especially after an accident, the control unit must be professionally repaired or replaced to restore the SRS's full functionality.
What part numbers are available for the Mitsubishi Lancer CC airbag control unit repair?
For a successful Mitsubishi Lancer CC airbag control unit repair, precise verification of OEM part numbers is essential to ensure compatibility. Genuine Mitsubishi part numbers such as P8635A168, TARME2937R0152, TARME1308R0924, and P8635A146 are primary references for the correct model selection of this control unit.
- **P8635A168** (Mitsubishi OEM) – Genuine part, often for Mitsubishi Lancer CC models from 2008-2011.
- **TARME2937R0152** (Mitsubishi OEM) – Listed as an alternative or replacement part for the airbag control unit, compatible with the Lancer CC series.
- **TARME1308R0924** (Mitsubishi OEM) – Another OEM alternative part number that ensures compatibility with the Mitsubishi Lancer CC airbag system.
- **P8635A146** (Mitsubishi OEM) – Genuine part that may be relevant for certain Lancer years and trim levels, careful inspection required.
The part numbers listed here have been verified multiple times and come from professional sources specializing in genuine Mitsubishi OEM parts. A match to your existing part number is crucial for the functionality of the repaired system.
Please note that compatibility may also depend on specific features and the exact year of your Mitsubishi Lancer. Always check the vehicle identification number (VIN) to avoid making an incorrect purchase.
Third-party part numbers such as Bosch or Continental are not directly listed for this specific Mitsubishi Lancer CC airbag control unit in the verified sources because they are OEM-specific modules.