P2123
Throttle/Pedal Position Sensor/Switch D Circuit High
2015-2015 BMW i3 22 kWh Single Motor RWD
Critical SeverityPowertrainGeneric (SAE)
The 2015 BMW i3 is equipped with a 22 kWh Single Motor RWD engine. Below you'll find detailed p2123 diagnostic code information including labor time estimates, cost ranges, and technician notes specific to this engine configuration.
Description
High voltage from accelerator pedal position sensor D.
Symptoms
- Limp mode
- Unintended acceleration
- Check engine light
Common Causes
- Open ground circuit
- Short to voltage
- Failed sensor
Diagnostic Steps
- Measure voltage at APP sensor D
- Check for opens in ground
- Inspect wiring
Repair Notes
Replace pedal assembly or repair wiring.
Related Codes
Other Powertrain Codes
- P0070Ambient Air Temperature Sensor Circuit
- P0071Ambient Air Temperature Sensor Range/Performance
- P0072Ambient Air Temperature Sensor Circuit Low
- P0073Ambient Air Temperature Sensor Circuit High
- P0115Engine Coolant Temperature (ECT) Sensor 1 Circuit
- P0116ECT Sensor 1 Circuit Range/Performance
- P0117ECT Sensor 1 Circuit Low Input
- P0118ECT Sensor 1 Circuit High Input
- P0119ECT Sensor 1 Circuit Intermittent
- P0125Insufficient Coolant Temperature for Closed Loop Fuel Control
P2123 on Other Vehicles
Common Questions
What does code P2123 mean on a 2015-2015 BMW i3?
P2123 stands for "Throttle/Pedal Position Sensor/Switch D Circuit High". High voltage from accelerator pedal position sensor D.
What are the symptoms of P2123 on a BMW i3?
Common symptoms of P2123 include: Limp mode, Unintended acceleration, Check engine light.
What causes P2123 on a 2015-2015 BMW i3?
Common causes of P2123 include: Open ground circuit, Short to voltage, Failed sensor.
Last updated: March 2026