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97 V70 Front passenger speakers not working

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Goupil
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Joined: 04 Feb 2019, 12:52
Year and Model: 98' V70 LPT
Location: Brittany
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97 V70 Front passenger speakers not working

Post by Goupil »

Hi everyone,

I got a 97 V70 a few weeks ago, and just noticed the front passenger speakers aren't working: having never messed with audio stuff, I don't know where to start the troubleshooting.

The car has a SC900 with the Dolby Prologic
The front passenger door, the dash and the dolby speakers aren't working at all (no buzzing or anything). Center and rear are fine

The previous owner added 2 speakers in the boot with some janky wiring :? I removed them to fit a full size spare wheel
Image

Could all three speakers be dead, or it sounds more like a connexion issue ? What should I check ? I'm not sure what to do since there's so many wires, and getting to the dash speakers seems quite hard :P

I have a multimeter and I'm not scared to take panels off, I just need a tool to avoid breaking clips

Thanks for your help :)
1998 Volvo V70 B5254T M56
1993 Volvo 944 D24TIC M46 - SOLD
1994 Volvo 945 B230FT M90

JakeDreamy
Posts: 4
Joined: 13 Mar 2019, 11:28
Year and Model: N/A (for now)
Location: Tampa, Florida

Post by JakeDreamy »

Hello, Goupil! Were you able to find out by now as to why the front speakers weren't working?

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Goupil
Posts: 256
Joined: 04 Feb 2019, 12:52
Year and Model: 98' V70 LPT
Location: Brittany
Has thanked: 13 times
Been thanked: 41 times

Post by Goupil »

Nop I haven't got time to work on it, might give it a look this week end.
1998 Volvo V70 B5254T M56
1993 Volvo 944 D24TIC M46 - SOLD
1994 Volvo 945 B230FT M90

User avatar
Goupil
Posts: 256
Joined: 04 Feb 2019, 12:52
Year and Model: 98' V70 LPT
Location: Brittany
Has thanked: 13 times
Been thanked: 41 times

Post by Goupil »

I had some free time this afternoon, so I started troubleshooting.

Dolby speaker looks dirty but fine
Image
The reading seems legit
Image
I've checked the wires going from the head unit to the speaker, continuity is okay. Not sure what's wrong with this one :?

Door speaker on the other hand was showing open circuit. After further inspection it appears that one of the wire broke
Image
I'll see if I can fix it because I'd rather spend my money on mechanical parts right now :P

The dash speaker seems quite a bit harder to reach, I'll give a look at this one another day
1998 Volvo V70 B5254T M56
1993 Volvo 944 D24TIC M46 - SOLD
1994 Volvo 945 B230FT M90

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