P2103Throttle Actuator A Control Motor Circuit High
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P2103 is the high-side fault of the throttle A drive: the output stage sees a voltage that suggests a short to battery, or on some layouts the supply relay of the throttle motor stays energized when it should be off. GM groups P2100-P2103 as power-limiting faults (18OBDG03A), and its Bosch-based 2012 ECM ties a power-stage short circuit to this range with about 0.1 s detection. Mitsubishi's 2022 Outlander list files P2100 and P2103 under the short name ETC MOT PWR, i.e. the supply of the throttle control motor, stored after one trip. The throttle is de-energized and power limited. Low-side faults are P2102, open circuit P2100.
- What you may notice
- Limp mode with very limited power
- Engine warning lamp on
- Engine may not start or stalls
- Likely causes
- LikelyMotor wire shorted to a battery-voltage feed
- PossibleThrottle motor relay sticking on (where fitted)
- PossibleDamaged or wet throttle connector
- RareInternal fault in the ECU throttle driver
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Often possible to do yourself.Typical cost: €30 – €600
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.