Powertrain
generic / SAE
P0510
Closed Throttle Position Switch
The dedicated closed-throttle switch (or closed-throttle bit on the TPS) does not behave as expected - either it never activates, never deactivates, or shows incoherent state against TPS voltage and engine load. Used by older systems for fuel-cutoff and idle recognition.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number5 / 10
Possible causes
- Switch out of adjustment or worn high
- TPS idle voltage offset medium
Symptoms
- Check engine light on
- Reduced throttle response, possible limp mode
- Hesitation or surging
- Idle too high or too low
Inspection / repair
- Difficulty: easy
- DIY: possible
- Estimated cost: 60–250 €
- Estimated time: 0.3–1.2 h
- Component: closed throttle switch
- Component: throttle position sensor
- MIL / check engine light
Sources
References
sae:J2012