Speedometer not working

Tiny
AFPGARY
  • MEMBER
  • 2002 VOLVO S40
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 110,000 MILES
I have a 2002 Volvo S40 speedometer stops working, ABS and Brake warning lights come on. Some times goes back to normal but not to often. I have tried replacing the speed sensors with no change.
Monday, December 6th, 2010 AT 3:20 PM

4 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,164 POSTS
Have you had the computer scanned
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Monday, December 6th, 2010 AT 3:22 PM
Tiny
AFPGARY
  • MEMBER
  • 9 POSTS
I have only scanned error codes that shows misfires which I have replaced the coils but it shows nothing that would relate to the speedo.
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Monday, December 6th, 2010 AT 4:12 PM
Tiny
AFPGARY
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No
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Monday, December 6th, 2010 AT 5:12 PM
Tiny
JIS001
  • MECHANIC
  • 3,408 POSTS
You could have several faults. To properly diagnose, you would need to have the transmission control module scanned for codes and the ABS modul scanned for codes as well. If you have wheel sensor codes or faulty pump in the ABS, then the ABS unit is faulty and will need to be replaced. For the TCM, look for a VSS code (Vehicle Speed Sensor) you could have a bad VSS in the transmisson.
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Monday, December 6th, 2010 AT 10:14 PM

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