What does code P1633 mean on BMW vehicles?
The ECU detects a failed throttle adaptation and places the throttle valve in limp-home position.
OBD-II Code BMW
P1633 — BMW — Throttle Valve Adaptation; Limp Home Position
The ECU detects a failed throttle adaptation and places the throttle valve in limp-home position.
Common symptoms
- Limited throttle response
Possible causes
- Faulty adaptation process
- throttle actuator issue
Initial recommendation
Perform throttle body adaptation and inspect throttle actuator operation.
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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