What P2100 means
Throttle Actuator A Control Motor Circuit/Open
Common causes (general)
Before spending money on parts, verify the code with a scan tool and read freeze frame data. Freeze frame captures every sensor value at the moment the code set — this is often enough to figure out the root cause without further testing.
Manufacturer-specific descriptions
Different manufacturers use this code for slightly different failure modes. Here's what your specific make means by P2100:
| BMW | Throttle Actuator Control Motor Circuit/Open |
| FIAT | throttle actuator control (PWM), Overtemperature |
| GM | Intake Air Flow Valve Control Circuit Open |
| MITSUBISHI | ETV motor circuit(open) |
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