Throttle Position Sensor/Switch ‘A’ Circuit Low Input
Table of contents
P0122 BMW Possible Causes
- Faulty Electromotive Throttle Actuator
- Electromotive Throttle Actuator harness is open or shorted
- Electromotive Throttle Actuator circuit poor electrical connection
How do I fix code P0122 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.
Tech Notes
- BMW Diagnostic Trouble Code (DTC): 101002
Cost of diagnosing the P0122 BMW code
The cost of diagnosing the P0122 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)
P0122 BMW Description
The accelerator pedal position is monitored separately by 2 inpidual sensors. Two sensors are employed to provide redundancy, implement the monitoring function, and facilitate recognition of malfunctions. The sensors register accelerator-pedal travel as angular deflection, with data being transmitted directly to the engine-management control unit as analog linear voltage curves for the pedal angle. Overall pedal travel is mechanically expressed as 16° ±0.5°. Each change in the accelerator-pedal position is transmitted to the engine-management control unit with a maximum lag of 50 milliseconds. Sensor signals are transmitted in analog form. The engine-management control unit monitors the two input signals from the sensors and compares them for plausibility (factors such as mutual synchronicity, linearity, etc.). The Diagnostic Trouble Code (DTC) is detected when the voltage of the throttle valve sensor (1) is less than the lower limit. Lower limit: 0.21 V.