Code P0502, VSS wire replacing schematic needed

2001 CHEVROLET 1500

140,753 MILES • 5.3L • 4WD • AUTOMATIC

MONEXELLA

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The VSS isn't working, the speedometer doesn't work but we have odometer etc. we replaced the VSS plugs but we still get the P0502 code (VSS Circuit low input) I would like to know how to replace the wires (or check if they are open/closed circuits) in a the truck listed above.

Mar 6, 2022 at 6:46 PM

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SQM

CAR REPAIR CONTRIBUTOR
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Hello,

I have attached the trouble shooting steps for the code P0502. It will show step by step process to find the issue. It also has the wiring schematics.

You will need a multimeter to perform these steps.

https://www.2carpros.com/articles/how-to-use-a-voltmeter

Please let me know if you have any questions.
Thank you.

Images (Click to enlarge)

Mar 7, 2022 at 9:57 AM