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Top convertible Hydraulic Pump Topic is solved

Help, Advice, Owners' Discussion and DIY Tutorials devoted to the second generation C70, S40 and V50 Volvos -- awkwardly model year 2004 ½ onwards -- plus where to go for advice and discussion on Volvo's sporty C30 Coupe powered by Volvo's ubiquitous inline 5-cylinder power plant.
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tango_1000
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Year and Model: c70 2007/ C70 2011
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Top convertible Hydraulic Pump

Post by tango_1000 »

I have a 2007 C70 hard top convertible. I had recently a problem, the ceiling upholstery so when I was trying to open the convertible top it got hook in between. Basically I had to open and closed it manually. I follow the instructions from some guy, very nice video on youtube. Everything was looking ok and nice close but when I stared the engine and drive a bit, just in reverse from the driveway, and very loud alarm sounded and a red warning sign plus it showed "STOP SAFELY ROOF CAN BE DAMAGED"
When I was opening and close I have to pull the cable under the back seat to decompress the hydraulic system. At the end I push the brass top on the hydraulic pump in the trunk near the ski opening to get the pump to create pressure again.
I used vida to diagnostic the problem and at some point showed CRM-C052 Hydraulic Pump Supply Voltage Too Low, and
"Related CSC
Text window and warning symbol, Text message, IV
Sun/moon/convertible roof, Hard/impossible to open/close, SC"
So I wonder if there is something more I need to do the re pressure the hydraulic pump? reset?
Anybody with any help please.
Thank you everyone

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Krons
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Post by Krons »

Watch this video at 9:30, May have your answer.
08 S602.5T/05 XC902.5T/02 S602.4T
08 C702.5T (sold)
05 S402.4i (RIP, timing belt failure)
The non-Swedes:
25 Mazda MX-5 / 17 Frontier Pro-4X / 17 Ford Focus
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tango_1000
Posts: 56
Joined: 15 July 2011
Year and Model: c70 2007/ C70 2011
Location: chapel hill, nc
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Post by tango_1000 »

Thank you, this is the video I follow the directions. Unfortunately my problem is past this instructions

Jonesroad
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Post by Jonesroad »

did you reset the convertible roof module?

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Krons
Posts: 1068
Joined: 9 January 2022
Year and Model: 08S60 05XC90 02S60
Location: Des Moines, IA
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Post by Krons »

tango_1000 wrote: 03 Jul 2023, 12:40 Thank you, this is the video I follow the directions. Unfortunately my problem is past this instructions
Per the video at 9:45 pulling the cylinders back is a critical step to make sure the computer thinks the roof is latched…this was completed?
08 S602.5T/05 XC902.5T/02 S602.4T
08 C702.5T (sold)
05 S402.4i (RIP, timing belt failure)
The non-Swedes:
25 Mazda MX-5 / 17 Frontier Pro-4X / 17 Ford Focus
17 R1200GS / 15 Versys 1000 / 11 DR-Z400S / 07 R1200GSA

Fidozzy
Posts: 1
Joined: 17 April 2024
Year and Model: 2008 Volvo
Location: Virginia

Post by Fidozzy »

Good evening, were you able to find a solution to the low voltage? I am having the same issue currently

Lafcadio78
Posts: 1
Joined: 6 March 2025
Year and Model: 2007 C70
Location: Australia

Post by Lafcadio78 »

Me too, same problem, beeping, roof not closed.

How did you get on?

Anyone know Paul Mountain’s contact details?

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