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.
2008 Volvo S80 BaseFACTORY OEM SERVICE PROCEDURE
Electrical Component Locator: Connectors
CONNECTORS LOCATION
| Component | Location |
|---|---|
| C74/30 (Black, 20 Pin) | Under driver's seat. |
| C74/31 (Black, 20 Pin) | Under front passenger's seat. |
| C74/53 (Black, 4 Pin) | Top left rear of engine. See Figure. |
| C74/99 (Black, 12 Pin) | Top left rear of engine. See Figure. |
| C74/133 (Black, 3 Pin) | Lower left side of engine. See Figure. |
| C74/276 (Gray, 12 Pin) | In driver's seat back. |
| C74/277 (Gray, 12 Pin) | In front passenger's seat back. |
| C74/301 (Black, 34 Pin) | Right front of engine compartment. See Figure. |
| C74/303 (Gray, 6 Pin) | Right front of engine compartment. See Figure. |
| C74/304 (Black, 2 Pin) | Left front of engine compartment. See Figure. |
| C74/308 (Gray, 4 Pin) | Left front of engine compartment. See Figure. |
| C74/401 (Gray, 22 Pin) | At left "A" pillar. See Figure. |
| C74/402 (Black, 2 Pin) | At left "A" pillar. See Figure. |
| C74/403 (Gray, 22 Pin) | Under center of vehicle, in tunnel. See Figure. |
| C74/404 (Black, 2 Pin) | Behind right kick panel. See Figure. |
| C74/405 (Black, 2 Pin) | Behind left kick panel. See Figure. |
| C74/406 (Violet, 2 Pin) | Behind left kick panel. See Figure. |
| C74/407B (Green, 16 Pin) | Behind left kick panel. See Figure. |
| C74/407 (Green, 16 Pin) | Behind left kick panel. See Figure. |
| C74/408 (Gray, 16 Pin) | Behind left kick panel. See Figure. |
| C74/409 (Green, 26 Pin) | Behind left kick panel. See Figure. |
| C74/411 (Gray, 26 Pin) | Right rear corner of engine compartment. See Figure. |
| C74/412 (Green, 16 Pin) | Base of right "A" pillar. See Figure. |
| C74/413 (Green, 6 Pin) | Behind left side of dash. See Figure. |
| C74/414 (Gray, 4 Pin) | Base of right "A" pillar. See Figure. |
| C74/501 (Green, 6 Pin) | Under center of vehicle, in tunnel. See Figure. |
| C74/502 (Gray, 2 Pin) | Under center of vehicle, in tunnel. See Figure. |
| C74/503 (Gray, 22 Pin) | Under center console. See Figure. |
| C74/504B (Red, 2 Pin) | Right rear corner of engine compartment. See Figure. |
| C74/504 (Natural, 57 Pin) | Right rear corner of engine compartment. See Figure. |
| C74/505 (Black, 2 Pin) | Right rear corner of engine compartment. See Figure. |
| C74/507 (Black, 26 Pin) | In driver's door. See Figure. |
| C74/508 (Black, 22 Pin) | In front passenger's door. See Figure. |
| C74/509 (Black, 16 Pin) | In left rear door. See Figure. |
| C74/510 (Black, 16 Pin) | In right rear door. See Figure. |
| C74/511 (Gray, 22 Pin) | Left front of luggage compartment. See Figure. |
| C74/512 (Gray, 14 Pin) | Right front of luggage compartment. See Figure. |
| C74/513 (Green, 5 Pin) | At right "C" pillar. See Figure. |
| C74/514 (Gray, 4 Pin) | Left front of luggage compartment. See Figure. |
| C74/518 (Yellow, 4 Pin) | Left rear of luggage compartment. See Figure. |
| C74/519 (Gray, 22 Pin) | Right rear corner of engine compartment. See Figure. |
| C74/520 (Gray, 6 Pin) | Right front of luggage compartment. See Figure. |
| C74/523 (Gray, 6 Pin) | Right rear of luggage compartment. See Figure. |
| C74/524 (Gray, 2 Pin) | Right front of luggage compartment. |
| C74/525 (Green, 6 Pin) | Left rear corner of luggage compartment. See Figure. |
| C74/529 (Black, 2 Pin) | Under right rear seat. |
| C74/601 (Gray, 10 Pin) | At left "C" pillar. See Figure. |
| C74/701 (Gray, 12 Pin) | Under driver's seat. |
| C74/702 (Gray, 12 Pin) | Under front passenger's seat. |
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.