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ECU reset Topic is solved

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

This topic is in the MVS Volvo Repair Database » 850 seat cushion foam replacement
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ECU reset

Post by Guest »

Is there a way to reset the ECU, like pulling a fuse or something? I have a 98 V70 AWD

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

Post by White850Turbo »

Pull it out of it's socket and re-install.
-Sean

1995 850 Turbo (Extensively Modded)

1998 S70 T5 (Almost Stock)

MadeInJapan
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Joined: 31 March 2005
Year and Model: '98 S70 T5 '07S40T5
Location: Knoxville, TN American but born in Japan
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Post by MadeInJapan »

If you don't want to mess with yoiur ECU, you can pull the negative and positive lines off of the battery and touch them together (make sure neither is hooked up to the battery when you do this....very very important), then leave them off the terminals for 15 minutes. Reconnect and walla...you're good to go with everything reset. You'll need your radio code to do this and will have to reset your clock.
'98 S70 T5 Emrld Grn Met/Beige Tons of Upgrades Mobil-1
'04 V70 2.5T Red/Taupe Some Upgrades Mobil-1
'07 S40 T5 AWD 6 speed manual! Silver/Black Stage1 Heico & Elevate
'07 S60 2.5T Blue/Taupe- my kid's Volvo

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