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Turn signal, hazard lights fix

Check out this hazard lights fix

hazard-switchA component level fix for the failure prone hazard / turn signal relay in the early S/V series cars.  Fix the switch yourself for under $2.00.

You need to remove the hazard push button from the unit, gently pry behing this button on the short side, you will see what I mean, you need to pry on both short sides to undo the catch that it has.

Than the next step is to remove the housing, again prying gently, the housing is made of quite thin plastic, and slide this off the unit.

Surprise, IC etc. etc. fansy stuff. But you will see three capacitors, two small ones and one larger one.

Turn signal, hazard lights fix

Bonus! 10 Interesting Volvo Facts

  • In Latin, the word Volvo means: I spin. Today however the nearest meaning is “I roll”.
  • Volvo was founded in 1924. The two founders were Gustav Larsson and Assar Gabrielsson.
  • The ÖV 4 is the first Volvo car. The first car was sell-ready in 1927. The 2-Liter, 4-cilinder car got the nickname: Jakob.
  • Volvo’s very first commercial vehicle was the Type-1 truck. The release year was 1928. In the same year, Volvo released the second car, the Volvo PV 651. Volvo manufactured a total of 1383 of both vehicles in the first year; of which automaker exported 27.
  • This trend saw a sharp rise in 1932 when Volvo released a good amount of 10,000 vehicles, both trucks and cars.
  • The company, however, started making a large-scale profit from the year 1935. The first luxurious car by Volvo was the PV36, which could carry six passengers at a time. The design of this iconic car paved the path for future Volvo cars to come. I came in the market with a price tag of 8,500 Swedish kronor.
  • Volvo touched a landmark in 1941, with the sale of its 50,000th vehicle; this is a unique achievement considering the time when WWII was in full swing.

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3 Comments

Terry Evans says:

I’m having the same issue on my 96′ 850 the number 13 fuse blows when the hazard switch is reinstalled, causing high beams, 4 way flashers and turn signals to fail.
I replaced the switch with various ones from junkyard, chased down ground wires, cleaned stop, turn and tail bulb sockets, disconnected the battery yadda yadda, still blows fuse within 5 minutes ..
With the switch unplugged the high beams work fine, so there must be a hot wire grounding out or switch failure, the indicator on the column seems to work proper – I’ve not taken it out yet but thought I’d reach out, is there something that’s “normal” for 850’s that cause this?
I bought it with the issue, appears to have had previous damage/repairs to inner sheet metal, searched for broken or pinched wires…

Hi everyone, I have just installed LED indicator lights (turn signal lights) on my 1998 Volvo S90, as expected they flashed too fast (hyperflash) so I started to look around the electrical system to see if I could slow them down to a normal rate. I found that by taking the Hazard switch apart and doing some checks I found that if you look at the microcontroller from the top (with the relays furthest from you) you can see that the 3rd pin from the left (pin row next to the relays) is marked IC, this pin controls how fast the lights flash. On the left of the microcontroller there is 2 capacitors, if you change the capicitor nearest the relays to a 4.7 pico farad the lights flash at a normal rate, this works for the Hazard lights as well. This may work for all Volvo’s that use this switch.
Richard.

Thanks – this was very helpful. I pulled out the hazard switch on my 1999 V70 and disconnected the harness. Couldn’t see anything that I could do to fix it so I just reattached the switch and … voila. Turn signals and hazards are on again.

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