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1998 s70 headlights, turn sigs, shift RESOLVED relay 106

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

1992 - 1997 850, 850 R, 850 T5-R, 850 T5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

mar601
Posts: 273
Joined: Sun Apr 17, 2011 9:36 am
Year and Model: 1998
Location: midwest us
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1998 s70 headlights, turn sigs, shift RESOLVED relay 106

Post by mar601 »

New ignition swich, new flasher, ALL fuses are good, headlight lamps are good.

No turn signals but hazard flashers work.

No headlights but have parking lights -- when I turn on headlights, the dash background lighting goes off as well as the headlight dash indicator. (indicator and backlighting fine with just parking lights on). Bright beams work fine. Seems like I'm drawing a lot of current when turning on headlights? (radio dims a lot etc). Battery is fine and getting 14V when car is running.

No shift lock. The shifter is free to move when driving and the button doesn't lock it.

ABS and TRACS lights are on (but may be unrelated -- however have a rebuilt module in there and no problem for years).

Maybe someone knows what's going on ? THANKS so much.
jblackburn
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Re: 1998 s70 Electrical problem -- headlights, turn sigs, sh

Post by jblackburn »

It still sounds suspiciously like an ignition switch problem. Does anything work right if you jiggle the key a little bit?

Otherwise, possibly a low voltage issue causing all these seemingly-unrelated issues. What's the alternator charging at, how old is the battery, and how well is the battery holding a charge?
'98 S70 T5
2016 Chevy Cruze Premier


A learning experience is one of those things that says, "You know that thing you just did? Don't do that."

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mar601
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Year and Model: 1998
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Re: 1998 s70 Electrical problem -- headlights, turn sigs, sh

Post by mar601 »

as I mentioned, just installed a new ignition switch and connector is fine also.

other than the relays in the engine compartment, are there others? I just read about some relays inside under the dash? '98 S70
jblackburn
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Re: 1998 s70 Electrical problem -- headlights, turn sigs, sh

Post by jblackburn »

Yup, but is the lock part of the switch (ignition collar) sticking the switch in the wrong part?

There are relays under the dash (crawl in look directly up by the brake to the right and you'll see em), but each one has its own purpose (wipers, alarm, etc) and I don't know of any one relay where all these tie together.
'98 S70 T5
2016 Chevy Cruze Premier


A learning experience is one of those things that says, "You know that thing you just did? Don't do that."

mercuic: Long live the tractor motor!
mar601
Posts: 273
Joined: Sun Apr 17, 2011 9:36 am
Year and Model: 1998
Location: midwest us
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Re: 1998 s70 Electrical problem -- headlights, turn sigs, sh

Post by mar601 »

when I replaced the switch, didn't touch anything -- the flat side of the locater was facing down -- switch works fine.

haven't tried replacing the headlight relay, just ordered one -- that relay is common to both the headlight and turn signal circuits so fingers crossed.
taxi
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Re: 1998 s70 Electrical problem -- headlights, turn sigs, sh

Post by taxi »

Do you have a tow bar? If so, unplug its connection and see if that helps.
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BEJinFbk
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Re: 1998 s70 Electrical problem -- headlights, turn sigs, sh

Post by BEJinFbk »

You may find a problem with the 106 overload relay:
Relay 2-6 position 106.png
Relay 2-6 position 106.png (133.05 KiB) Viewed 1880 times
Swapping it with 105 should reveal if 106 has bad contacts.
'98 V70 R - Well Equipped for Life Up North... ;)
mar601
Posts: 273
Joined: Sun Apr 17, 2011 9:36 am
Year and Model: 1998
Location: midwest us
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Re: 1998 s70 Electrical problem -- headlights, turn sigs, sh

Post by mar601 »

Installed headlight relay -- still no luck.

So now on to the headlight switch -- now I just read it was recalled? Even with the headlight relay pulled I get the same result, no headlights or backlighting -- so obviously it wasn't the relay.

No jiggling of the switch make a difference either.
mar601
Posts: 273
Joined: Sun Apr 17, 2011 9:36 am
Year and Model: 1998
Location: midwest us
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Re: 1998 s70 Electrical problem -- headlights, turn sigs, sh

Post by mar601 »

Scratch that !

You're a friggin genius -- thank you so much man.

I didn't see you had posted a drawing of relays 105 and 106 and you hit it on the head ! Damn it feels good to have this working again. "Overload relay huh"? I wonder that it's function is?

Anyway -- what a great forum -- thanks to people like you. !
mar601
Posts: 273
Joined: Sun Apr 17, 2011 9:36 am
Year and Model: 1998
Location: midwest us
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Re: 1998 s70 Electrical problem -- headlights, turn sigs, sh

Post by mar601 »

Wonder who has this part? Tried Eeuroparts and they don't even list it -- oh well, the hard part is over -- thanks again !!!!!
Locked
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