P1523
Electronic Throttle Control Throttle Return
Severity
⚠️ MediumCan you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–89 (est.)
Symptoms
- Reduced engine power
- Switching to emergency mode
- Unstable operation at idle
- Check Engine Light Illuminates
- Acceleration problems
Causes
- Throttle return spring malfunction
- Dirty or stuck throttle valve
- Problems with the throttle motor
- Open or short circuit in control circuit
- Throttle Position Sensor Malfunction
How to Fix
- Check the throttle mechanism for binding
- Clean the throttle valve from dirt
- Check the condition of the return spring
- Diagnose the electric motor and position sensors
- Check the integrity of wiring and connectors