What does code P1550 mean on BMW vehicles?
The ECU detects an electrical malfunction in the closing solenoid control circuit of the idle speed control valve.
OBD-II Code BMW
P1550 — BMW — Idle Speed Control Valve Closing Solenoid Control Circuit Electrical
The ECU detects an electrical malfunction in the closing solenoid control circuit of the idle speed control valve.
Common symptoms
- Unstable idle speed
- engine stalling
Possible causes
- Faulty solenoid
- damaged wiring or connector
Initial recommendation
Inspect idle control valve closing solenoid and repair or replace faulty components.
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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