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ABS light on - fault codes p0505 & p0500 showing

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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seasider
Posts: 8
Joined: 20 May 2008
Year and Model:
Location: blackpool

ABS light on - fault codes p0505 & p0500 showing

Post by seasider »

Hi

Got a 1999 v70, 2.5lit, 10v, non turbo, automatic, 265k miles on it (uk car)

Its showing fault codes p0505 and p0500 with the ABS light constantly on, not getting any usual signs of ABS modual failing, speedometer is ok and not eratic. Auto transmission shifts up and down quite smooth and the engine performs well

Any one got any ideas

Thanks
Seasider

JRL
Posts: 9350
Joined: 22 November 2005
Year and Model: Several
Location: 19333
Been thanked: 16 times

Post by JRL »

seasider wrote:Hi

Got a 1999 v70, 2.5lit, 10v, non turbo, automatic, 265k miles on it (uk car)

Its showing fault codes p0505 and p0500 with the ABS light constantly on, not getting any usual signs of ABS modual failing, speedometer is ok and not eratic. Auto transmission shifts up and down quite smooth and the engine performs well

Any one got any ideas

Thanks
Seasider
ABS module usually has nothing to do with the other, your module needs to be repaired/replpaced
Mod note. Jim passed away in early 2022, his contributions to this forum are immortal, and he is missed. RIP

2000 V70R Black, 144,000 miles Wife's R.
2007 V70 2.5T White/Oak 111,000 MILES. Polestar tune, IPD bars, rear spoiler, dark grey Thors, DWS 06, HU850, sub.

seasider
Posts: 8
Joined: 20 May 2008
Year and Model:
Location: blackpool

Post by seasider »

Thanks

Will get the ABS modual replaced/repaired

The p0500 code is - vehicle speed sensor fault - where do I find this on my model ? and is it a difficult job to replace it ?

P0505 code is - air idle control valve - should I replace this

Seasider

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