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C70 wiring diagrams? Got some plugs hanging "in the air" in the

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
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1997 - 2004 C70

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yanga001
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Re: C70 wiring diagrams? Got some plugs hanging "in the air" in the

Post by yanga001 »

Is there a partial short circuit along the way. That seems like the light is not getting its full voltage, are any wires damaged or cut?Check the relays and ensure that everything is in its plug correctly.

When you blinked right it looked like left was triggering partially, are all the connectors for the left and right separated properly.

Are there LED's in the lights. The flast blink is strange, i believe the light control module is in the hazard signal button. It should all come out as one piece.

I can upload a video of what the blinking should look like. You should not get any blink on the other side. That tells me that the left and right might be partially connected somewhere, or the relay may be defective.
1998 S70 N/A Auto (Parts car)(planned to be harvested)
1998 V70 N/A Auto New full restoration project (Water pump thrown at 404K Km)
1998 V70 N/A Auto (Workhorse) (Tree to driver B pillar :( )
1999 S70 T5 Auto(Project) (planned to be fixed)
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eightfifty2x0
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Post by eightfifty2x0 »

yanga001 wrote: 14 Sep 2020, 20:02 Is there a partial short circuit along the way. That seems like the light is not getting its full voltage, are any wires damaged or cut?Check the relays and ensure that everything is in its plug correctly.

When you blinked right it looked like left was triggering partially, are all the connectors for the left and right separated properly.

Are there LED's in the lights. The flast blink is strange, i believe the light control module is in the hazard signal button. It should all come out as one piece.

I can upload a video of what the blinking should look like. You should not get any blink on the other side. That tells me that the left and right might be partially connected somewhere, or the relay may be defective.
I haven't observed any wrong connections or even damaged ones but somebody told me that the parking assistant might be falsely connected. Because this car was reared and now fixed, but by somebody who just fixed the body, not necessarily the electronics

eightfifty2x0
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Post by eightfifty2x0 »

And the thing is, that before I took the car to the body workshop, it was all fully functioning. So it is definitely something wrong with the connections. Might be the parking assistance, that is wrongly connected

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abscate
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Post by abscate »

Those ground wires need to be, grounded.

Get the wiring diagrams and the listing of. Every ground points in the rear and get checking. Whoever left off those left off others, too. No competent electrical work leaves grounds loose
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eightfifty2x0
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Post by eightfifty2x0 »

abscate wrote: 15 Sep 2020, 03:27 Those ground wires need to be, grounded.

Get the wiring diagrams and the listing of. Every ground points in the rear and get checking. Whoever left off those left off others, too. No competent electrical work leaves grounds loose
The ground cables on the pictures are the only ones i observed. I dont know whether within the rear bumper are more of those. Because the rear bumper was removed in order to repair the body

eightfifty2x0
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Post by eightfifty2x0 »

Hi, adminos! I fixed the issues. I guess there was some software issue because when i took it to some Volvo pros(not Volvo dealer) they "read" the errors and deleted them. Since then it all works fine.

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Stu70
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Post by Stu70 »

Glad you got it all sorted 👍🏻

Are the ring terminals still hanging in the air, Or are they tucked up under the carpet screwed into the bodywork? I no doubt imagine the specialists charged you to ‘delete the errors in the software’ ?
1998 S70 10v BiFuel - Sold
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BEJinFbk
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Post by BEJinFbk »

What year is this C70?
'98 V70 R - Well Equipped for Life Up North... ;)

eightfifty2x0
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Post by eightfifty2x0 »

Stu70 wrote: 21 Sep 2020, 01:29 Glad you got it all sorted 👍🏻

Are the ring terminals still hanging in the air, Or are they tucked up under the carpet screwed into the bodywork? I no doubt imagine the specialists charged you to ‘delete the errors in the software’ ?
25 euros. Yes

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