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No Power to Trunk Actuators, switch seems fine

Help, Advice and DIY Tutorials on Volvo's P80 platform cars -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, including 850 R, 850 T-5R, 850 T-5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

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goodheartchris
Posts: 1
Joined: 30 June 2024
Year and Model: 1998 S70
Location: Dallas

No Power to Trunk Actuators, switch seems fine

Post by goodheartchris »

Just bought a 1998 S70 but the electric antenna, trunk release, and fuel door release don't work.

When I press the fuel door or trunk release I hear one click under the dashboard on the driver side, and another click a few seconds later. From what I can tell this is normal.

I have continuity in the wires going to the fuel door actuator, but no power when I press the release switch. Im assuming the trunk and antenna also get no power.

All rear lights and signals work without a problem. I have tried with all doors locked and unlocked. Windows and lock switches all work fine.

Could this be because the safety system thinks the doors are locked?
Do all three of these draw from the same power wire? How and where is the power wire routed?

scot850
Posts: 14900
Joined: 5 April 2010
Year and Model: 2000 V70 R
Location: Calgary, Alberta, Canada
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Post by scot850 »

3 different issues.

1) Antenna - If it is not raising or lowering, it is likely the plastic teeth at the bottom end of the antenna have stripped or the motor has failed. Most is the former. You can remove the antenna by disassembling the antenna and removing the remains of the mast and then installing a new mast.
2) Lock assembly on trunk lid - broken power line to the lock assembly in the LHR trunk lid harness by the let hinge. If the wiring is fine then the latch assembly may have broken internally.
3) Trunk release - Either the release motor has failed, or there may be a broken wire in the door harness to the S-pillar from the door.

Neil.
2006 V70 2.5T AWD Polestar tune
2000 V70 R - still being an endless PITA
2006 XC70 - Our son now has this and still parked in our garage
2003 Toyota 4Runner V8 Limited
2015 Kia Sportage EX-L - Sold
1993 850 GLT -Sold
1998 V70 XC - Sold
1997 Volvo 850 SE NA - Went to niece in California - Sold
2000 V70 SE NA - Sold

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