What does code P1620 mean on BMW vehicles?
The ECU detects a high signal condition in the MAP cooling control circuit.
OBD-II Code BMW
P1620 — BMW — MAP Cooling Control Circuit Signal High
The ECU detects a high signal condition in the MAP cooling control circuit.
Common symptoms
- Check engine light illuminated
Possible causes
- Short circuit to voltage
- wiring fault
Initial recommendation
Inspect wiring harness for shorts and repair as necessary.
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.
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