What is a Mitsubishi Shogun V20 airbag control unit?
The Mitsubishi Shogun V20 airbag control unit is your vehicle's central safety unit, activating all occupant restraint systems, such as airbags and seatbelt pretensioners, in the event of an accident. It continuously monitors sensors, evaluates impact signals, and ensures correct deployment to maximize occupant safety.
This compact control unit processes signals from acceleration and impact sensors and is directly connected to the vehicle diagnostic system (OBD-II).
It allows access to the error memory for diagnosis and maintenance, is designed for 12V vehicle electrical systems and operates reliably over a wide temperature range.
Why is the Mitsubishi Shogun V20 airbag control unit defective?
A Mitsubishi Shogun V20 airbag control unit often fails due to internal memory or logic errors, which can be caused by aging components, electrical system surges, or moisture damage. Such internal damage then causes the system to activate the airbag warning light or stop functioning completely.
Common causes are internal component failures, especially in the non-volatile memory (EEPROM) or the ASIC chip.
These are critical for collision detection and activation, which can result in errors such as B1496 or B1497.
Communication errors via the CAN bus or problems with connectors to the control unit (e.g. B1548, B1519) can also indicate an internal failure.
A precise diagnosis is essential for repairing the Mitsubishi Shogun V20 airbag control unit.
Common error codes for Mitsubishi Shogun V20 airbag control unit repair
When repairing a Mitsubishi Shogun V20 airbag control unit, specific error codes can indicate internal problems that directly affect the control unit and require a precise diagnosis. These codes often signal memory defects, communication problems, or internal logic errors that can compromise the system's safety.
- B1207 → Passenger Airbag Indicator Circuit Shorted → A short circuit in the passenger airbag indicator circuit was detected by the control unit.
- B1402 → Driver Airbag Squib Grounding → A ground fault in the driver airbag circuit was detected directly at the control module.
- B1496 → SRS-ECU non-volatile memory (EEPROM) error → An internal memory error in the airbag control unit affects data integrity.
- B1497 → SRS-ECU ASIC error (for frontal activation) → A defect in the internal logic IC of the control unit is relevant for frontal airbag deployment.
- B1498 → SRS-ECU ROM or RAM Error → An internal memory component of the control unit is defective or faulty.
- B1509 → Incorrect SRS-ECU → The airbag control unit is not correctly configured for the vehicle or an inappropriate unit has been installed.
- B1519 → SRS-ECU connector lock out of order → A faulty or loose connector on the airbag control unit impairs function.
- B1548 → CAN communication impossible → The airbag control unit can no longer communicate with other vehicle systems via the CAN bus.
What part numbers are available for the Mitsubishi Shogun V20 airbag control unit repair?
For the repair of a Mitsubishi Shogun V20 airbag control unit, exact OEM part numbers are publicly available only to a very limited extent, as they are usually vehicle-specific and must be read directly from the component. There is no generic, 100% verified list of OEM part numbers for this specific series.
The most accurate method to identify the correct part number for your Mitsubishi Shogun V20 airbag control unit is to read it directly from the nameplate of the installed unit.
Alternatively, an official Mitsubishi dealer can determine the number using the vehicle identification number (VIN).
Online sources or used parts exchanges often do not offer verified numbers specifically for the Shogun V20; numbers like MR309667, for example, belong to other Mitsubishi models.
Specialized workshop services or access to professional TecDoc databases are advisable for reliable identification when repairing the Mitsubishi Shogun V20 airbag control unit.