Volvo 850 Made from 1993 to 1997, this Volvo line was available in both a wagon and a sedan, both with were graced with several trim levels.

How to reset the SERVICE LIGHT on the '93 through '95 models...

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Old 11-07-2009, 09:59 PM
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Lightbulb How to reset the SERVICE LIGHT on the '93 through '95 models...

If you have a 1993 through 1995 SERVICE LIGHT that comes on when you start the car and goes out after the car has been running for 2 minutes, you can likely reset it with these instructions.
  1. Turn the key on - II position (car NOT running).
  2. Open the hood and pull the cap off the OBD-I, A (left side) adapter.

  3. Remove the jumper wire from the cap and Jump #7.

  4. Push the button 4 times. Each time you press the button, the red light next to it will light up. Each time you release the button the light will go out. After you let it go the last time, wait a few seconds and the red light will come back on and stay on.
  5. While the light is still on, push the button 1 time. Wait a few seconds until the red light comes back on.
  6. While the light is on, push the button 5 times. Wait a few seconds until the red light comes back on.
  7. While the light is on, push the button 1 time. The red light will flicker several times then go out.
  8. Remove the jumper wire and cover the connector. You are done.
Some 850's have a plug in the instrument cluster. If you remove the rubber dust plug and press the button under it you will reset the SERVICE LIGHT. I received this information from this thread: https://volvoforums.com/forum/volvo-850-16/how-reset-service-light-14870/

You can see more on reseting service lights here: http://volvospeed.com/850slight.php

Here is a video:

 

Last edited by rspi; 03-15-2013 at 11:00 PM. Reason: Addition
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Old 11-08-2009, 01:06 AM
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THANK YOU!! im 35miles from my dealer, and i never remember the sequence for this.
 
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Old 11-09-2009, 10:13 AM
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Old 11-09-2009, 11:09 AM
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This is a great write-up. Thank you rspi.
 
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