Error code
OBD2 P0510
OBD2P0510
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.
What it means
Closed Throttle Position Switch.
Severity
moderateCan drive, but performance issues may occur.
Summary
P0510 indicates a malfunction in the closed throttle position switch circuit, which is located on the throttle body between the air intake and intake manifold.
Symptoms
- Reduced engine power
- Acceleration problems
- Engine stalling
- Lack of power
- High or low idling
- Check engine light
- Poor gas mileage
Common Causes
- Damaged CTP sensor wiring
- Damaged TPS wiring
- Filth and dirt build-up in the throttle valve
- Open or short in closed throttle position switch circuit
- Damaged PCM
Diagnosis
- Check for openings in the harness or ECM.
- Inspect and repair broken wiring connections between TPS and ECM.
- Test sensor connection to ensure it is good.
- Replace damaged PCM if necessary.
Fixes
- Repair or replace damaged CTP sensor wiring.
- Clean throttle valve of any dirt and debris build-up.
FAQ
What does P0510 mean?
P0510 indicates a malfunction in the closed throttle position switch circuit, which affects the PCM's ability to accurately determine the throttle position.
How do I fix P0510?
Fixes include repairing or replacing damaged wiring and cleaning the throttle valve of any dirt build-up.
Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.
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