Throttle Position Control Error
2014-2021 BMW i3 Range Extender
Description
The DME detected that the electronic throttle body is not reaching its commanded position. The actual throttle opening does not match the DME-requested opening, indicating a throttle actuator or sensor malfunction.
Symptoms
- Check Engine Light
- Reduced power mode (limp mode)
- Poor throttle response
- Engine may idle only
- Throttle warning light
Common Causes
- Carbon buildup on throttle blade
- Faulty throttle body actuator motor
- Throttle position sensor failure
- Wiring issue to throttle body
- DME throttle driver failure
Diagnostic Steps
- Perform throttle body adaptation reset with scan tool
- Clean throttle body
- Test throttle position sensor voltages
- Inspect wiring to throttle body
- Test throttle motor by commanding positions
Repair Notes
Clean throttle body and perform adaptation; replace throttle body if actuator motor has failed.
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
P1545 on Other Vehicles
Common Questions
What does code P1545 mean on a 2014-2021 BMW i3?
P1545 stands for "Throttle Position Control Error". The DME detected that the electronic throttle body is not reaching its commanded position. The actual throttle opening does not match the DME-requested opening, indicating a throttle actuator or sensor malfunction.
What are the symptoms of P1545 on a BMW i3?
Common symptoms of P1545 include: Check Engine Light, Reduced power mode (limp mode), Poor throttle response, Engine may idle only, Throttle warning light.
What causes P1545 on a 2014-2021 BMW i3?
Common causes of P1545 include: Carbon buildup on throttle blade, Faulty throttle body actuator motor, Throttle position sensor failure, Wiring issue to throttle body, DME throttle driver failure.