Code P501, Engine Check Light?

2003 HYUNDAI ELANTRA
129,800 MILES • 4 CYL • 2WD • AUTOMATIC
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DCKMASON
The EC code coming back from the scope is 'P501'?
Mar 23, 2025 at 12:40 PM
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STEVE W.
  • ASE Certified Mechanic
  • 15,172 POSTS
  • ASE Certified Mechanic
P0501 would be a right front wheel speed sensor fault. Either a bad sensor or the circuit to it is open. If you have a multimeter, you can test the sensor and harness from the connector on the ABS module and PCM. You would go to pin 39 in the PCM connector 138 and pin 9 in E39 on the ABS connector. There should be continuity, if not then you unplug the speed sensor and short the two pins, if you now see continuity the harness is okay and it's likely a bad sensor.
Mar 23, 2025 at 2:17 PM
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DCKMASON
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Thaks again, I gave the car to my mechanic along with the info from you. thanks again.
Mar 23, 2025 at 5:36 PM
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STEVE W.
  • ASE Certified Mechanic
  • 15,172 POSTS
  • ASE Certified Mechanic
You're welcome. Please let us know what the results are.
Mar 23, 2025 at 7:29 PM
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