AutoCodes – Infiniti – P0510 Infiniti

P0510 Infiniti Code - Closed Throttle Position Switch Fault

Quick Answer

A closed Throttle Position Switch (TPS) and wide open TPS are built into the throttle position sensor unit on most Infiniti vehicles, on older Infiniti vehicles the TPS is a separate unit. Common causes include Throttle Position Switch (TPS) Adjustment, Faulty Throttle Position Switch (TPS), Throttle Position Switch (TPS) harness open or shorted. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P0510 Infiniti indicates Closed Throttle Position Switch Fault.
Common causes: Common causes include Throttle Position Switch (TPS) Adjustment, Faulty Throttle Position Switch (TPS), Throttle Position Switch (TPS) harness open or shorted.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 6,451

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 14, 2020

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
Comments
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Code P0510 Infiniti Description

A closed Throttle Position Switch (TPS) and wide open TPS are built into the throttle position sensor unit on most Infiniti vehicles, on older Infiniti vehicles the TPS is a separate unit. The wide open throttle position switch is used only for A/T control. When the throttle valve is in the closed position, the closed throttle position switch sends a voltage signal to the Engine Control Module (ECM). The ECM only uses this signal to open or close the EVAP canister purge volume control solenoid valve when the throttle position sensor is malfunctioning.

OBDII Code P0510 Infiniti - Closed Throttle Position Switch Fault - AutoCodes.com — P0510 Infiniti Code - Closed Throttle Position Switch Fault

What does this mean?

What are the Possible Causes of the DTC P0510 Infiniti?

Throttle Position Switch (TPS) Adjustment
Faulty Throttle Position Switch (TPS)
Throttle Position Switch (TPS) harness open or shorted
Throttle Position Switch (TPS) circuit poor electrical connection

How to Fix the DTC P0510 Infiniti?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What does this mean?

Code Tech Notes

Adjusting the Throttle Position Switch (TPS) may take care of the problem, if the problem persists the TPS may need to be replaced.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0510 Infiniti code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.