What does code P1540 mean on BMW vehicles?
The ECU detects a malfunction in the accelerator pedal position (APP) sensor.
OBD-II Code BMW
P1540 — BMW — Pedal Position Sensor
The ECU detects a malfunction in the accelerator pedal position (APP) sensor.
Common symptoms
- Limp mode activation
- reduced throttle response
Possible causes
- Faulty APP sensor
- internal sensor failure
Initial recommendation
Perform accelerator pedal diagnostics and verify sensor signals.
Safety notice
This information is for guidance only. Brand-specific codes may vary by model, year, engine, transmission and vehicle configuration. It does not replace a physical inspection or diagnosis by a qualified mechanic. If the vehicle is unsafe to operate, avoid driving it and seek professional inspection.
Analyze this code with MecaOBD
Use the app to combine BMW code P1540 with your vehicle's actual symptoms for more complete diagnostic guidance.
Go to the app View more brands