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.
2009 Volvo C70 AutomaticFACTORY OEM SERVICE PROCEDURE
Control Units
CONTROL UNITS LOCATION
| Component | Location |
|---|---|
| Accessory Electronic Module (AEM) (4/78) | Right rear corner of cargo compartment. See Figure. |
| Accessory USB Unit (AUU) (4/124) | Behind right side of dash. See Figure. |
| Additive Dosing Module (ADM) (4/111) | Behind left rear seat. See Figure. |
| Audio Module (AUD) (16/105) | Left side of luggage compartment. See Figure. |
| Bluetooth Phone Module (BPM) (16/147) | Under right side of dash. See Figure. |
| Brake Control Module (BCM) (4/16) | Left rear corner of engine compartment. See Figure. |
| Convertible Roof Module (CRM) (4/59) | Right side of luggage compartment. See Figure. |
| Cooling Fan Control Module (4/71) | Rear of engine cooling fan assembly. See Figure. |
| Differential Electronic Module (DEM) (4/82) | At rear differential. See Figure. |
| Driver's Door Module (DDM) (3/126) | In driver's door. See Figure. |
| Engine Control Module (ECM) (4/46.2) | Left front of engine compartment. See Figure. |
| Fan Control Module (4/31) | Behind center of dash. See Figure. |
| Fuel Pump Control Module (4/83) | Under left rear seat. See Figure. |
| Handsfree Mobile Phone Control Module (16/159) | In front passenger's footwell. See Figure. |
| Headlamp Control Module (HCM) (4/114) | Behind left headlight assembly. See Figure. |
| Keyless Vehicle Module (KVM) (4/93) | Under driver's seat. See Figure. |
| Master Gas Discharge Lamp Control Module (Left/Right) (4/112 & 4/113) | Behind respective headlight. See Figure. |
| Parking Assistance Module (PAM) (4/86) | Right rear corner of cargo compartment. See Figure. |
| Passenger's Door Module (PDM) (3/127) | In passenger's door. See Figure. |
| Phone Module (PHM) (16/60) | Under right side of dash. See Figure. |
| Remote Receiver Module (RRX) (4/119) | Behind instrument cluster. See Figure. |
| Seat Heating Module (SHM) (Driver's Side) (9/12) | Under driver's seat. See Figure. |
| Seat Heating Module (SHM) (Passenger's Side) (9/13) | Under front passenger's seat. See Figure. |
| Siren Control Module (SCM) (16/35) | Right rear of engine compartment. See Figure. |
| Steering Wheel Module (SWM) (3/254) | Top of steering column. See Figure. |
| Subwoofer Module (SUB) (16/79) | Left side of luggage compartment. See Figure. |
| Supplemental Restraint System Module (SRS) (4/9) | Under rear of center console. See Figure. |
| Transmission Control Module (TCM) (4/28) | Center rear of engine compartment. See Figure. |
Factory Service Tools
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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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