Engine-Codes - Infiniti - P0510 Infiniti

P0510 Infiniti Code - Closed Throttle Position Switch Fault

- Code Popularity: 6,202 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents
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What are the Possible Causes of the DTC P0510 Infiniti?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • 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

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.

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How to Fix the DTC P0510 Infiniti?

Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

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What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the P0510 Infiniti code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

When is the Code Detected?

Malfunction is detected when battery voltage from the closed throttle position switch is sent to ECM with the throttle valve opened.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)
  • Engine idle problems
  • Difficulty Starting
  • Transmission issues

What Does the P0510 Infiniti Code Mean?

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.
P0510 Infiniti Code - Closed Throttle Position Switch Fault

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