Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSVOLVO2009XC70 BASEREPAIR AND DIAGNOSISENGINE PERFORMANCEENGINE CONTROL SYSTEMSELECTRICAL MODULES AND COMPONENTS - DESIGN AND FUNCTION - 3 OF 5FORWARD SENSING MODULE (FSM) (2009-2011 UP TO STRUCTURE WEEK 201046)SYSTEM OVERVIEWINTRODUCTION
2009 Volvo XC70 Base
System Overview: Introduction
2009 Volvo XC70 BaseSECTION Introduction
The Forward Sensing Module is an electronic system that:Β
- warns and aids the driver to brake the vehicle in the event of an imminent collision
- warns the driver when he/she is about to leave the lane
- warns the driver when his/her driving pattern deteriorates.
Parts of the system also make up an addition to the existing cruise control.
The following functions are provided by the Forward Sensing Module :Β
- Collision warning; Β warns the driver of a possible collision with vehicles in front.
- Automatic braking; Β brakes the vehicle automatically when a collision is unavoidable.
- Brake support; Β aids the driver, when there is a collision risk, to brake the vehicle when the brake pedal is depressed.
- Distance check.Β A permanent light indication in the front windshield informs that the time distance to the vehicle ahead is less than the set time distance. This helps the driver to maintain the time distance to the vehicle ahead.
- Adaptive cruise control; Β maintains a time interval to the vehicle ahead when cruise control is activated.
- ; Β warns the driver if they are unintentionally about the leave their lane.
- ; Β alerts and warns the driver that their attention, and therefore, their driving pattern, have deteriorated due to fatigue for example.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.