Under Dash Passenger side to the right of the kick panel
In the 1989 Volvo 740 GL with a Bosch system it is located just above the steering column on the dash.
pop the hood look behind the air filter assambly, driver's side
On a 1989 Volvo 240, the control module, often referred to as the engine control unit (ECU), is typically located under the dashboard on the driver's side. It can be found mounted to the left of the steering column, behind a plastic cover. Accessing it may require removing the cover for visibility and adjustment.
What year and model
In a 2000 Volvo S80, the airbag control module is typically located under the center console, near the transmission tunnel. To access it, you may need to remove the center console trim and any associated panels. Always ensure the vehicle's battery is disconnected before attempting to work on the airbag system for safety reasons.
in the upper control module
The electronic throttle module on a 2000 Volvo V70 is located on the intake manifold, adjacent to the engine's throttle body. It is typically positioned near the front of the engine, close to the air intake system. To access it, you may need to remove some components such as the air intake duct and possibly other surrounding parts for better visibility and access.
In a Volvo 850, the fan speed control module is typically located behind the glove compartment. To access it, you may need to remove the glove compartment and its support bracket. The module is usually mounted on the blower motor housing or nearby, depending on the specific model year. Always consult the vehicle's service manual for detailed instructions and safety precautions.
Engine control unit or electronic control unit.
The ignition control module on a 1995 Volvo 960 is typically located on the engine itself, mounted to the engine block near the ignition coil. It may be found on the driver's side, near the front of the engine. For precise identification, refer to the vehicle's service manual, as the exact location can vary slightly between models.
On most models it is mounted in the center of the dash under the main fuse panel which is located under where the cb sets. At least that is where it is in my truck.