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.
2004 Volvo V40 BaseFACTORY OEM SERVICE PROCEDURE
Control Units
CONTROL UNITS LOCATION
| Component | Location |
|---|---|
| ABS Control Module (4/28) | In right front corner of engine compartment.Figure . |
| Central Electronic Module (4/38) | Behind left side of dash.Figure . |
| Climate Control Module (CCM) (4/9) | Integral to A/C controls, in center of dash.Figure . |
| Cruise Control Module (4/5) | Behind lower center of dash.Figure . |
| Dynamic Stability Assistance (DSA) Control Module (4/3) | Behind right side of dash.Figure . |
| Electronic Immobilizer Control Module (4/18) | Behind left side of dash.Figure . |
| Engine Management System (426) | Behind lower center of dash.Figure . |
| Fuel Throttle Body Control Module (4/50) | Behind left side of dash. See Figure . |
| Key-Inserted Warning/Seat Belt Reminder Control Module (4/35) | In passenger compartment fuse & relay box. See Figure . |
| Parking Assistance Module (4/108) | Near left rear lamps. See Figure . |
| Parking Heater Remote Start Control Module (4/106) | Behind center of dash. See Figure . |
| Passenger Compartment Fan Speed Control Module (4/14) | Behind right side of dash, on bottom of HVAC assembly.Figure . |
| Power Sunroof Control Module (4/11) | At front center of roof.Figure . |
| Supplemental Restraint System (SRS) Control Module (4/4) | Below rear of center console, between front seats.Figure . |
| Transmission Control Module (TCM) (4/27) | Behind lower center of dash. See Figure . |
| Ultrasonic Glass Breakage Sensor Control Module (4/41) | Below right side of dash. See Figure . |
| VGLA Control Module (4/39) | Behind lower center of dash.Figure . |
| VGLA Receiver (4/40) | In rear of engine compartment.Figure . |
| Xenon Lamps Control Module (4/6) | Under left rear seat.Figure . |
Factory Service Tools
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.
Comes to youSame-day available12-month warranty
Get a Free QuoteNo obligation. See pricing before you book.