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.
Downloading Software And Replacing The Control Module: Installation
When installing the Alcohol Analyzing Start Inhibitor, the handset unit code/ID is stored in the Central electronic module (CEM). Only one handset unit can be programmed for the vehicle. If the unit were to break or need replacing, a new one can be programmed. The handset unit is programmed via the Software manager in VIDA (Volvo scan tool).
At installation, also select which BYPASS variant the vehicle is to have; emergency function (single) or multiple.
Single BYPASS can only be used once and must then be reset by erasing diagnostic trouble codes from the Central electronic module (CEM).
Multiple BYPASS can be used indefinitely.
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
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.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
No obligation. See pricing before you book.