P0510: Closed Throttle Position Switch Malfunction
Can you still drive? Yes, the vehicle is drivable but may idle poorly or hesitate. Avoid situations requiring precise throttle control until repaired.
What Does P0510 Mean?
Code P0510 indicates that the PCM has detected a malfunction in the closed throttle position switch, which tells the computer when the throttle is fully closed. This switch is critical for proper idle control and deceleration fuel cutoff strategies. A faulty signal can lead to poor idle quality and increased emissions.
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 throttle position sensor
- Misadjusted throttle position sensor
- Damaged wiring to TPS
- Dirty or sticking throttle plate
- Failed PCM driver circuit
Symptoms
- Check engine light on
- Erratic idle speed
- Poor deceleration response
- Increased fuel consumption
- Engine hesitation
Diagnostic Steps
- 1Check TPS voltage at closed throttle with a scan tool
- 2Verify TPS voltage is within specification at idle
- 3Inspect wiring and connector for the throttle position sensor
- 4Check throttle plate for binding or carbon buildup
- 5Test TPS signal by slowly opening throttle and watching for dropouts
Recommended Parts & Tools
throttle position sensor
throttle body cleaner
Estimated Repair Cost
| Type | Estimated Cost |
|---|---|
| Total Repair Cost Range | $50 - $350 |
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Chat with AI About P0510Commonly Affected Vehicles
Related Recalls
1 Active Recall — 2026 Nissan Frontier
The following NHTSA safety recalls have been issued for this vehicle. Contact your dealer to check if your vehicle is affected.
LATCHES/LOCKS/LINKAGES:DOORS:LATCH
Nissan North America, Inc. (Nissan) is recalling certain 2025 Altima, Sentra, 2025-2026 Frontier, and 2026 Kicks vehicles. The door strikers may have been improperly welded and break, allowing the door to open while moving. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 206, "Door Locks and Door Retention Components."
Remedy: Dealers will replace the door strikers, free of charge. Owner notification letters are expected to be mailed March 13, 2026. Owners may contact Nissan's customer service at 800-647-7261. Nissan's numbers for this recall are PD185 and PMA61. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning January 28, 2026.
Data provided by the National Highway Traffic Safety Administration (NHTSA).
Frequently Asked Questions
What does the closed throttle position switch do?
It signals the PCM that the throttle is fully closed, allowing proper idle speed control and enabling deceleration fuel cutoff to improve fuel economy.
Is P0510 related to the throttle position sensor?
Yes, the closed throttle position switch is typically integrated into the throttle position sensor assembly. Replacing the TPS usually resolves P0510.
Community Fix Reports
Community reports are user-submitted and not verified by Auto AI Buddy. Results may vary.
Related Codes
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