Throttle Actuator Control Motor Circuit Range/Performance
2003-2003 Mazda B2300 2.3L I4
The 2003 Mazda B2300 is equipped with a 2.3L inline-4 engine. Below you'll find detailed p2101 diagnostic code information including labor time estimates, cost ranges, and technician notes specific to this engine configuration.
Description
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
Repair Notes
Clean throttle body first. Replace if motor performance does not improve.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P2101 on Other Vehicles
Common Questions
What does code P2101 mean on a 2003-2003 Mazda B2300?
P2101 stands for "Throttle Actuator Control Motor Circuit Range/Performance". The electronic throttle motor is not responding as expected to ECM commands.
What are the symptoms of P2101 on a Mazda B2300?
Common symptoms of P2101 include: Limp mode, Reduced power, Check engine light, Erratic idle.
What causes P2101 on a 2003-2003 Mazda B2300?
Common causes of P2101 include: Carbon-fouled throttle body, Weak motor, High resistance in wiring, Binding throttle plate.
Last updated: March 2026