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JAY4321, ASE Certified Technician
Category: Chevy
Satisfied Customers: 45
Experience:  14 years experience, ASE certified, MACS and Alldata Certified
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2000 S-10 Blazer 4.3 L V6. My speedometer quit working. I

Resolved Question:

2000 S-10 Blazer 4.3 L V6. My speedometer quit working. I am not getting any trouble codes but I replaced the VSS anyway hoping that it was the problem but it wasn't. My next assumption is that it is the speedometer itself. Is there any way of confirming a faulty speedometer before I buy a new one?
Submitted: 7 years ago.
Category: Chevy
Expert:  JAY4321 replied 7 years ago.

Hello, yes there is a way to check but a diagnostic scan tool or an osciloscope will need to be used to determine if the vss is giving a signal. I will send you the diagnostic procedure just in case you are ablr to use it. I hope this answers your question. If so please click the accept button. Thank you JAY.

Speedometer Inaccurate or Inoperative
Symptom Related Diagnostic Procedures
Speedometer Inaccurate Or Inoperative (Part 1 Of 2)
Speedometer Inaccurate Or Inoperative (Part 2 Of 2)

Customer: replied 7 years ago.
Would it be possible to get a copy of the wiring diagram showing the colors of the wires from the VSS to computer and gauge cluster?
Expert:  JAY4321 replied 7 years ago.
Hello, yes I will send them to you. Thanks Jay. If you need anything else please let me know.
Engine Control Schematics: Vehicle Speed Sensor (VSS)
Instrument Cluster: Analog Schematics (Power)
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