P2101 – Throttle Actuator ‘A’ Control Motor Circuit Range/Performance
Description
The ECM detects abnormal range or performance in the throttle actuator motor circuit, causing unstable throttle operation.
Need More Than Just the Fault Code?
A diagnostic scanner with live data, freeze-frame information and the right system access can help you investigate the actual cause before replacing parts.
Compare Diagnostic ScannersSymptoms
- Poor acceleration
- Delayed throttle response
- Unstable idle
- Limp mode
Causes
- Faulty throttle actuator motor
- Wiring resistance issues
- Carbon buildup in throttle body
- Faulty PCM/ECM driver
Diagnosis
- Inspect throttle body for binding
- Check wiring resistance and continuity
- Test actuator motor operation
- Verify PCM/ECM output
Repair
- Clean or replace throttle body
- Repair wiring
- Replace throttle actuator
- Replace PCM/ECM if needed
