Powertrain
generic / SAE
P2102
Throttle Actuator Control Motor Circuit Low
Drive voltage to the throttle motor is below the lower limit. Typically a short to ground or a failed driver stage in the ECU.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number1 / 02
Possible causes
- Drive line shorted to ground high
- Throttle motor internal short medium
- Connector pins corroded - high contact resistance low
Symptoms
- Check engine light on
- Reduced throttle response, possible limp mode
- Hesitation or surging
- Idle too high or too low
Inspection / repair
- Difficulty: medium
- DIY: possible
- Estimated cost: 120–700 €
- Estimated time: 0.5–2.5 h
- Component: throttle actuator motor
- Component: throttle body wiring
- Component: ecm
- MIL / check engine light
- emissions-relevant
- drive cycle required
- limp mode possible
Sources
References
sae:J2012