P2101
PowertrainElectronic Throttlehigh severityThrottle Actuator Control Motor Circuit Range/Performance
What P2101 Means
The electronic throttle motor is not responding as expected to ECM commands.
Symptoms
- Limp mode
- Reduced power
- Check engine light
- Erratic idle
Common Causes
- Carbon-fouled throttle body
- Weak motor
- High resistance in wiring
- Binding throttle plate
Diagnostic Steps
- Clean throttle body
- Check motor resistance
- Monitor throttle position during actuation
- Inspect for physical binding
Where to start: Clean throttle body first. Replace if motor performance does not improve.
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