P0501: Vehicle Speed Sensor Range/Performance
Can you still drive? Yes, but use caution. Without an accurate speedometer you may unknowingly speed, and transmission shift quality may be affected.
What Does P0501 Mean?
Code P0501 indicates that the vehicle speed sensor (VSS) is sending erratic or out-of-range signals to the powertrain control module. The PCM uses the VSS data for shift timing, cruise control, and speedometer operation. When the signal deviates from expected parameters, this code is stored.
Need to read your codes?
An OBD-II scanner lets you read and clear diagnostic trouble codes from your vehicle's computer. Most scanners work with any car made after 1996.
Browse OBD-II Scanners on AmazonCommon Causes
- Faulty vehicle speed sensor
- Damaged wiring or connector at VSS
- Corroded or dirty tone ring
- Faulty instrument cluster
- Transmission output shaft sensor failure
Symptoms
- Speedometer not working or erratic
- Check engine light on
- Harsh or delayed transmission shifts
- Cruise control inoperative
- ABS warning light on
Diagnostic Steps
- 1Read freeze frame data and note vehicle speed at time of fault
- 2Inspect VSS wiring and connector for damage or corrosion
- 3Test VSS output signal with a multimeter or oscilloscope
- 4Check the tone ring for debris or damage
- 5Compare VSS reading to a GPS speed reading during test drive
Recommended Parts & Tools
vehicle speed sensor
Estimated Repair Cost
| Type | Estimated Cost |
|---|---|
| Total Repair Cost Range | $80 - $400 |
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Chat with AI About P0501Commonly Affected Vehicles
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Frequently Asked Questions
Why is my speedometer not working with P0501?
P0501 means the vehicle speed sensor is sending bad data. Since the speedometer relies on this sensor, it will read incorrectly or not at all until the sensor is replaced.
Can P0501 affect my transmission?
Yes, the transmission uses vehicle speed data to determine shift points. A faulty VSS can cause harsh, late, or erratic shifting.
Community Fix Reports
Community reports are user-submitted and not verified by Auto AI Buddy. Results may vary.
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