Throttle Actuator Control System – Forced Idle
Table of contents
P2104 BMW Possible Causes
- Faulty Throttle Positioner Motor
- Throttle Positioner Motor harness is open or shorted
- Throttle Positioner Motor circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How do I fix code P2104 BMW?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Cost of diagnosing the P2104 BMW code
The cost of diagnosing the P2104 BMW code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P2104 BMW Description
The electronic throttle control system can monitor the system operation in manner ways. The actual position can be monitored by the Engine Control Module (ECM). This will be mapped against the desired throttle position. The current flow through the motor is also monitored. These data parameters allow very precise fault codes to be logged such as actuator stuck, ice blockage, unmetered air entering the intake manifold, etc.