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.
2005 Volvo XC70FACTORY OEM SERVICE PROCEDURE
Control Units
CONTROL UNITS LOCATION
| Component | Location |
|---|---|
| Accessory Electronic Module (AEM) (V70) (4/78) | At right rear corner of cargo compartment. See Figure . |
| Accessory Electronic Module (AEM) (XC90) (4/78) | At right rear corner of cargo compartment. See Figure . |
| Activation Unit DSTC (8/46) | On brake master cylinder. See Figure . |
| Antenna Control Module (16/110) | Rear of roof. See Figure . |
| Audio Module (AUD) (16/105) | Under right front seat. See Figure . |
| Brake Control Module (BCM) (4/16) | At left rear corner of engine compartment. See Figure . |
| Call Parking Heater Start Control Module (4/107) | Right rear of cargo compartment. See Figure . |
| Cellular Telephone Hands Free Control Module (V70) (16/93) | Under driver's seat. See Figure . |
| Cellular Telephone Hands Free Control Module (XC90) (16/93) | Behind right side of dash. See Figure . |
| Central Electronic Module (CEM) (V70) (4/56) | Behind left side of dash. See Figure . |
| Central Electronic Module (CEM) (XC90) (4/56) | Behind left side of dash. See Figure . |
| Combustion Preheater Module (CPM) (4/7) | Left front corner of engine compartment. See Figure . |
| Cooling Fan Control Module (4/71) | At front center of engine compartment. See Figure . |
| Differential Electronic Module (DEM) (4/82) | At rear differential. See Figure . |
| Electronic Power Steering Control Module (4/99) | Left center of dash. See Figure . |
| Electronic Throttle Module (4/50) | On left side of engine. See Figure . |
| Engine Control Module (ECM) (4/46) | At right side of engine compartment, forward of strut tower. See Figure . |
| Fan Control Module (4/31) | Behind right side of dash, near blower fan. See Figure . |
| Fuel Pump Control Module (4/83) | On fuel tank. See Figure . |
| Parking Assistance Module (PAM) (4/86) | At left rear corner of cargo compartment. See Figure . |
| Power Seat Module (PSM) (4/52) | Under driver's seat. See Figure . |
| Rain Sensor Module (7/149) | Above center of windshield, forward of rearview mirror. See Figure . |
| Rear Audio Separation Module (RAS) (16/122) | Under center console. See Figure . |
| Rear Electronic Module (4/58) | At left rear corner of cargo compartment. See Figure . |
| Remote Parking Heater Start Control Module (4/106) | Right rear of cargo compartment. See Figure . |
| Seat Heater Module (SHM) (Left/Right) (9/12, 9/13) | Under respective front seats. See Figure . |
| Siren Control Module (SCM) (16/35) | In right front wheelwell. See Figure . |
| Steering Angle Sensor Module (4/68) | At top of steering column. See Figure . |
| Sun Roof Control Module (4/33) | Forward of sun roof opening. See Figure . |
| Supplementary Restraint System (SRS) Control Module (4/9) | Below floor console, behind gear selector lever. See Figure . |
| Suspension Module (SUM) (4/84) | Under center console. See Figure . |
| Trailer Module (4/110) | Left rear of cargo compartment. See Figure . |
| Transmission Control Module (TCM) (4/28) | At right side of engine compartment, forward of strut tower. See Figure . |
| Upper Electronic Module (V70) (4/70) | Integral to rearview mirror. See Figure . |
| Upper Electronic Module (XC90) (4/70) | Rearward of roof console. See 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.