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.
System Overview: Signals
The table below summarizes the input signals and output signals to and from the Closing velocity module (CVM). The signal type is divided into directly connected signals, CAN-, sensor-CAN-, and internal CAN communication. The illustration below reproduces the same information and Volvo component designations.
| Input signals | Output signals |
| Directly connected: | Directly connected: |
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| Via internal CAN communication (only XC60 (MY -2012)): | Via internal CAN communication (only XC60 (MY -2012)): |
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| Via sensor-CAN (only S60 (11-), V60, XC60 (MY 2013-), V40 (13-), V40 Cross Country): | Via sensor-CAN (only S60 (11-), V60, XC60 (MY 2013-), V40 (13-), V40 Cross Country): |
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| Via Controller Area Network (CAN) communication: | Via Controller Area Network (CAN) communication: |
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NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.