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.
Search for P0510 Questions and Answers: Search here →
What is the Cost to Diagnose the Code?
Labor: 1.0
The cost to diagnose the P0510 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 Code Mean?
A closed Throttle Position Switch (TPS) and wide open TPS are built into the throttle position sensor unit on most vehicles, on older 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 Code - Closed Throttle Position Switch Malfunction