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ABS error codes- 850 ‘97 T-5

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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juicywheat
Posts: 5
Joined: 18 May 2024
Year and Model: 1997 850 T-5
Location: Washington US

ABS error codes- 850 ‘97 T-5

Post by juicywheat »

Hello, I have 850 97 T-5. Abs light has been turned on since I got the car and I had a chance to scan OBD. Here are the error codes:

01
ABS Intermittent LR Wheel Sensor Signal
Intermittent Fault, Extrapolation Counter

20
1. Control Module - General Fault
2. Front Right Wheel Sensor Fault In Sensor Circuit

30
Intermittent Rear Left Wheel Sensor - Fault
In Sensor Circuit

40
Intermittent Rear Right Wheel Sensor Fault In Sensor Circuit

I have considered to change the module by myself from the Midwest module. I am wondering if I need to change or remove individual sensor(s) from the wheel, I’d appreciate any suggestions or tips. Thanks again.

scot850
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Joined: 5 April 2010
Year and Model: 2000 V70 R
Location: Calgary, Alberta, Canada
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Post by scot850 »

It is 99% the ABS module. Get Matty to send you a rebuilt unit on exchange.

When you get that many errors it may have something else going on but hard to identify when the module is likely the issue.

For test purposes only, try wedging some cardboard between the power leads and the ABS module. What this does is push the internal pins harder onto their seats where they have likely separated from. Clear the faults (take notes of what they are for your own amusement) and then start the car and see if any come back.

Neil.
2006 V70 2.5T AWD Polestar tune
2000 V70 R - still being an endless PITA
2006 XC70 - Our son now has this and still parked in our garage
2003 Toyota 4Runner V8 Limited
2015 Kia Sportage EX-L - Sold
1993 850 GLT -Sold
1998 V70 XC - Sold
1997 Volvo 850 SE NA - Went to niece in California - Sold
2000 V70 SE NA - Sold

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