What is a Daihatsu Pyzar G303 airbag control unit?
The Daihatsu Pyzar G303 airbag control unit is the central safety unit that activates all occupant restraint systems in the event of an accident. It continuously monitors impact sensors, stores important crash data, and ensures the proper functioning of all airbag modules in the vehicle for occupant safety.
This essential component of the Supplemental Restraint System (SRS) controls the deployment of the driver and passenger airbags. It also manages the airbag warning light in the instrument panel.
A self-diagnosis system is integrated to detect errors in the airbag system at an early stage. If a malfunction occurs, deployment is prevented and the warning light is activated.
Why is the Daihatsu Pyzar G303 airbag control unit defective?
A defective Daihatsu Pyzar G303 airbag control unit can be caused by moisture, short circuits due to coolant leaks or mechanical damage after an accident, because these external influences impair the sensitive electronics and thus endanger the functional reliability of the system.
The G303 model was affected by a recall where coolant leaks could cause short circuits in the airbag control unit. Such electrical problems can lead to complete failure.
Mechanical influences such as dents, water ingress or deformations after an impact also make a Daihatsu Pyzar G303 airbag control unit repair impossible, as the internal structure could be damaged.
Another common problem is age-related wear and tear on electronic components. This can impair performance and cause malfunctions.
Common error codes for Daihatsu Pyzar G303 airbag control unit repair
Specific, publicly available trouble codes for the Daihatsu Pyzar G303 airbag control unit are not documented in the sources available to us; a precise diagnosis requires manufacturer-specific tools for reading the internal system codes.
- Problem: Coolant leak → Effect: Short circuit in the control unit → Note: Recall REC-003438 describes unexpected airbag deployment.
- Problem: Airbag warning light active → Effect: System error detected → Note: Requires professional SRS diagnostic equipment for accurate code determination.
- Problem: No public code list → Impact: No specific OBD-II B codes known → Note: Direct access to Daihatsu service databases is necessary.
What part numbers are available for the Daihatsu Pyzar G303 airbag control unit repair?
The precise OEM part number for the Daihatsu Pyzar G303 airbag control unit is currently not verified in the accessible databases, therefore accurate identification requires access to official manufacturer catalogs or professional in-vehicle diagnostics.
Previous research has not provided exact OEM part numbers for the airbag control unit of the Daihatsu Pyzar G303 model or corresponding alternative numbers from suppliers.
For a reliable Daihatsu Pyzar G303 airbag control unit repair, the part number should be checked via official Daihatsu dealers or specialized databases such as TecDoc/TecAlliance.
Alternatively, a professional workshop can read the part number directly from the defective control unit. This ensures that the correct replacement part is ordered.
Function and features of the Daihatsu Pyzar G303 airbag control unit
The airbag control unit of the Daihatsu Pyzar G303 collects signals from various impact sensors and continuously evaluates the vehicle's movement in order to activate the safety systems within milliseconds in the event of an impact.
In the event of a sufficiently severe impact, it initiates the airbags' deployment by triggering the squib element in the airbag module. This effectively protects the vehicle occupants.
The control unit features a built-in self-diagnosis function that activates the airbag warning light when the vehicle is started and deactivates it again after a brief check. This indicates the system's functionality.
In the event of a fault, the warning light is permanently activated, and airbag deployment is deactivated to prevent accidental or dangerous deployment. It has an internal capacitor for a short-term emergency power supply.
Installation position and connections for the Daihatsu Pyzar G303 airbag control unit
The Daihatsu Pyzar G303 airbag control unit is typically mounted in the vehicle interior, usually under the dashboard or in the center console, to optimally protect it from moisture and mechanical damage and to ensure reliable function.
Installation is done by screwing the robust housing into the designated location in the vehicle.
It has multi-pin connectors to the impact sensors located on the front and sides of the vehicle. Special airbag connectors connect it directly to the driver and passenger airbag modules.
A connection to the on-board electronics, including the ignition, battery, and warning light in the instrument cluster, is also provided. The vehicle battery must be disconnected before installation.
Compatibility and years of manufacture for the Daihatsu Pyzar G303 airbag control unit repair
The airbag control unit is primarily designed for the Daihatsu Pyzar, also known as Daihatsu Gran Move, with the specific model code G303 and is compatible for models from approximately 1996 to 2000.
It is suitable for variants of the Pyzar/Gran Move series with 1.5L HE-EG 16V SOHC I4 gasoline engines. This applies to both the 66 kW and 74 kW variants for various export markets and Japan.
Both pre-facelift and facelift versions of the Daihatsu Gran Move G303 are compatible with this control unit. It is crucial to use only the original airbag control unit.
The use of damaged or unsuitable airbag modules and control units is avoided. This ensures the compatibility and safety of the Daihatsu Pyzar G303 airbag control unit repair.