Idle Speed Control Throttle Position Lower Limit Not Reached
2022-2024 Audi Q4 e-tron Electric
Description
The ECU detected that the throttle plate cannot reach its lower limit (closed position) during idle speed control. The minimum throttle opening is higher than expected.
Symptoms
- Idle speed too high
- Check Engine Light
- Cannot achieve low idle
- Increased fuel consumption at idle
Common Causes
- Carbon buildup preventing throttle closure
- Throttle body motor binding
- Throttle cable binding (older models)
- Cruise control cable interference
- Damaged throttle body bore
Diagnostic Steps
- Clean throttle body thoroughly
- Check throttle cable (if equipped) for binding
- Perform throttle body adaptation
- Inspect throttle body bore for damage
- Test throttle motor operation
Repair Notes
Clean the throttle body to remove carbon and perform throttle body adaptation.
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
P1564 on Other Vehicles
Common Questions
What does code P1564 mean on a 2022-2024 Audi Q4 e-tron?
P1564 stands for "Idle Speed Control Throttle Position Lower Limit Not Reached". The ECU detected that the throttle plate cannot reach its lower limit (closed position) during idle speed control. The minimum throttle opening is higher than expected.
What are the symptoms of P1564 on a Audi Q4 e-tron?
Common symptoms of P1564 include: Idle speed too high, Check Engine Light, Cannot achieve low idle, Increased fuel consumption at idle.
What causes P1564 on a 2022-2024 Audi Q4 e-tron?
Common causes of P1564 include: Carbon buildup preventing throttle closure, Throttle body motor binding, Throttle cable binding (older models), Cruise control cable interference, Damaged throttle body bore.