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.
Connecting the Volvo Scan Tool (ST)
The following operations are required to connect the Volvo Scan Tool (ST):
- Ignition off.
- Select DIAGNOSTIC TEST to read and erase diagnostic trouble codes (DTCs) and to activate functions.
- Select MONITOR TEST to continuously read off the values and status of control module input and output signals.
- Select READ CM: ID to read off the control module P/N.
- Install the memory cassette.
- Select DIAGNOSTIC TEST to read and erase diagnostic trouble codes (DTCs) and to activate functions.
- Select MONITOR TEST to continuously read off the values and status of control module input and output signals.
- Select READ CM: ID to read off the control module P/N.
- Connect the Volvo Scan Tool (ST) wiring to the data link connector (DLC). This is located under the center console cover.
- Select DIAGNOSTIC TEST to read and erase diagnostic trouble codes (DTCs) and to activate functions.
- Select MONITOR TEST to continuously read off the values and status of control module input and output signals.
- Select READ CM: ID to read off the control module P/N.
- Ignition on.
- Select DIAGNOSTIC TEST to read and erase diagnostic trouble codes (DTCs) and to activate functions.
- Select MONITOR TEST to continuously read off the values and status of control module input and output signals.
- Select READ CM: ID to read off the control module P/N.
- Power up the Volvo Scan Tool (ST).
- Select DIAGNOSTIC TEST to read and erase diagnostic trouble codes (DTCs) and to activate functions.
- Select MONITOR TEST to continuously read off the values and status of control module input and output signals.
- Select READ CM: ID to read off the control module P/N.
- Select language, car and group of functions using a multi-function menu.
- Select DIAGNOSTIC TEST to read and erase diagnostic trouble codes (DTCs) and to activate functions.
- Select MONITOR TEST to continuously read off the values and status of control module input and output signals.
- Select READ CM: ID to read off the control module P/N.
- Select the system required using a multi-function menu.
- Select DIAGNOSTIC TEST to read and erase diagnostic trouble codes (DTCs) and to activate functions.
- Select MONITOR TEST to continuously read off the values and status of control module input and output signals.
- Select READ CM: ID to read off the control module P/N.
- Select function from another multi-function menu:
- Select DIAGNOSTIC TEST to read and erase diagnostic trouble codes (DTCs) and to activate functions.
- Select MONITOR TEST to continuously read off the values and status of control module input and output signals.
- Select READ CM: ID to read off the control module P/N.
Use the Manual With the Right Hardware
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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.
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