Покажчик кодів несправностей · medium
P1229
Throttle motor control circuit malfunction
Throttle motor control circuit malfunction
Scope: 2.5L/3.0L gasoline · System(s): EMS OBD II · Factory MIL flag: 2 · Default action: ECM Default: –Throttle motor and throttle motor relay disabled –Throttle valve opening set to default value –Idle speed controlled by fuel injection intervention –Idle speed adapti…
Common causes
- Throttle motor disconnected Throttle motor to ECM drive circuits: short circuit or open circuit Throttle motor failure
- Electronic Throttle Control Circuit
Quick checks
- Confirm freeze-frame and conditions when the code set
- Inspect connectors, grounds, and harness for the circuit named in the code
- Compare live sensor values vs expected (unplugged/biased sensors are common)
Typical fixes
- Check throttle body wiring