OBD-II Code Audi

P1620 — Audi — Engine Coolant Temperature Signal Open / Short to B+

The engine coolant temperature signal is open or shorted to positive.

Brand Audi
System Cooling System
Severity Medium
Safe to drive? Not recommended
Advanced scanner Yes

What does code P1620 mean on Audi vehicles?

The engine coolant temperature signal is open or shorted to positive.

Common symptoms

  • Incorrect temperature readings.

Possible causes

  • Electrical fault.

Initial recommendation

Check ECT sensor.

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 Audi code P1620 with your vehicle's actual symptoms for more complete diagnostic guidance.

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