Throttle Position Control Malfunction
2022-2024 Audi Q4 e-tron Electric
Description
The ECU detected that the electronic throttle body is not achieving the commanded position. The actual throttle opening deviates from the target by more than the allowable tolerance.
Symptoms
- Check Engine Light
- Reduced power mode
- Throttle response sluggish
- Engine may stall
- EPC warning light on
Common Causes
- Carbon buildup on throttle plate
- Faulty throttle body motor
- Throttle position sensor fault
- Wiring issue
- ECU throttle driver failure
Diagnostic Steps
- Perform throttle body adaptation/basic setting
- Clean throttle body
- Test throttle motor by commanding positions
- Check wiring and connector
- Monitor commanded vs actual throttle position
Repair Notes
Clean throttle body and perform adaptation; replace if 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 2022-2024 Audi Q4 e-tron?
P1545 stands for "Throttle Position Control Malfunction". The ECU detected that the electronic throttle body is not achieving the commanded position. The actual throttle opening deviates from the target by more than the allowable tolerance.
What are the symptoms of P1545 on a Audi Q4 e-tron?
Common symptoms of P1545 include: Check Engine Light, Reduced power mode, Throttle response sluggish, Engine may stall, EPC warning light on.
What causes P1545 on a 2022-2024 Audi Q4 e-tron?
Common causes of P1545 include: Carbon buildup on throttle plate, Faulty throttle body motor, Throttle position sensor fault, Wiring issue, ECU throttle driver failure.