What does code P1566 mean on Lexus vehicles?
The ECU detects a duplicate or repeated malfunction in the cruise control main switch circuit, preventing cruise control operation.
OBD-II Code Lexus
P1566 — Lexus — Cruise Control Main Switch Circuit Malfunction (Duplicate)
The ECU detects a duplicate or repeated malfunction in the cruise control main switch circuit, preventing cruise control operation.
Common symptoms
- Cruise control inoperative
Possible causes
- Faulty cruise control switch
- wiring issue
Initial recommendation
Perform basic inspection of the cruise control main switch and wiring.
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 Lexus code P1566 with your vehicle's actual symptoms for more complete diagnostic guidance.
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