P2102critical severityPowertrain
Throttle Actuator Control Motor Circuit Low
on 2021 Chevrolet Bolt EV Electric Motor · FWD
What this code means
Low voltage detected on the electronic throttle motor drive circuit.
Symptoms
- Limp mode
- Very limited throttle response
- Check engine light
Common causes
- Short to ground in motor circuit
- Damaged wiring harness
- Corroded pins
- Internal motor short
Diagnostic steps
- Measure voltage at throttle body connector
- Check wiring for chafing/shorts
- Test motor winding resistance
Repair notes
Repair short circuit or replace throttle body.
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