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S70 ABS/Brake/Chk eng -lights & no speedo

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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dawnkirk
Posts: 1
Joined: 10 September 2004
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S70 ABS/Brake/Chk eng -lights & no speedo

Post by dawnkirk »

99 s70 awd, has intermitten no speedometer/odometer which occurs simultaneously with Brake warning light. ABS light, traction light and tranny light all come on intermittenly - when tranny light is on car will not shift properly. Have noticed that the volume of stereo fluctuates when the speedo engages/diseneages. have replaced neutral safety switch

No codes

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Tsquared
Posts: 519
Joined: 17 August 2003
Year and Model: 11 C30
Location: Atlanta GA
Has thanked: 1 time

Post by Tsquared »

Sounds like you have a serious wiring problem in the dash...

These are a lot of differnt sytems that have one thing in common - they are electrical. I wish I could give a more positive answer but electrical problems for me have always been a pain.
'11 C30 T5

'96 854 - died an early death with 184K miles. Killed by the front end of an LTD on a suicide mission (T-boned and both cars totaled).

Debra B
Posts: 7
Joined: 14 July 2004
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Post by Debra B »

I had the same problem, the brake warning light would come on and the speedometer would stop working, the a/c would stop blowing cold air, etc. My mechanic said the brake failure light comes on when fluid levels get below the sensor. Told to keep brake fluid topped off. I topped off the fluid levels and have not had any problems since.

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