P2101high severityPowertrain
Throttle Actuator Control Motor Circuit Range/Performance
on 2005 Lexus LS 430 4.3L V8 · RWD
What this code means
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.
Other Powertrain codes on this vehicle
P0001
Fuel Volume Regulator Control Circuit/Open
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1
P0011
Intake Camshaft Position Timing Over-Advanced Bank 1
P0012
Intake Camshaft Position Timing Over-Retarded Bank 1
P0013
Exhaust Camshaft Position Actuator Circuit/Open Bank 1
P0014
Exhaust Camshaft Position Timing Over-Advanced Bank 1
P0015
Exhaust Camshaft Position Timing Over-Retarded Bank 1