What does code P1221 mean on BMW vehicles?
The ECU detects that Accelerator Pedal Position Sensor 2 is operating outside the expected range or performance limits.
OBD-II Code BMW
P1221 — BMW — Pedal Position Sensor 2 Range/Performance Problem
The ECU detects that Accelerator Pedal Position Sensor 2 is operating outside the expected range or performance limits.
Common symptoms
- Engine enters limp mode
- reduced throttle response
Possible causes
- Faulty accelerator pedal position (APP) sensor
- internal sensor failure
Initial recommendation
Perform detailed accelerator pedal diagnostics and verify sensor signal correlation.
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
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