Question 1

What does P2101 mean?

Accepted Answer

P2101 - Throttle Actuator Control Motor Circuit Range/Performance. The electronic throttle body motor is not responding correctly to PCM commands.

Question 2

What are the symptoms of P2101?

Accepted Answer

Reduced engine power, Limp mode, Check engine light, Very slow acceleration

Question 3

What causes P2101?

Accepted Answer

Dirty throttle body, Failed throttle body, Wiring issue, Carbon buildup, TAC module failure

Question 4

How much does it cost to fix P2101?

Accepted Answer

Typical repair cost: $100-$600. On GM, this triggers 'Reduced Engine Power.' Clean throttle body first. Throttle body relearn required after cleaning or replacement.

P2101 — Throttle Actuator Control Motor Circuit Range/Performance

Don't guess — diagnose P2101 the right way

Common symptoms of P2101

Common causes of P2101

Repair cost & difficulty

Vehicles commonly affected

Related trouble codes