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1996 850 immobilizer

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
1997 - 2000 V70-XC
1997 - 2004 C70

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msprinkle
Posts: 2
Joined: 27 February 2006
Year and Model:
Location:

1996 850 immobilizer

Post by msprinkle »

I had to jump start my 1996 850. After getting the battery charged, the vehicle will not start. The red LED in the dash stays red all the time, except when the doors are locked from the outside, which causes the LED to strobe, very fast.

How do I reset the immobilizer? I'm trying to avoid having my vehicle towed 120 miles to the nearest Volvo dealership.

White850Turbo
Posts: 923
Joined: 11 April 2004
Year and Model:
Location: Plano, TX

Post by White850Turbo »

Try resetting the ECU by pulling it out and putting it back in. If that doesn't work, I do have some info on this that I can dig up later.
-Sean

1995 850 Turbo (Extensively Modded)

1998 S70 T5 (Almost Stock)

msprinkle
Posts: 2
Joined: 27 February 2006
Year and Model:
Location:

Post by msprinkle »

One question...where is the ECU in a 1996 850?

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