What does code P1665 mean on Hyundai vehicles?
The ECU detects a malfunction in ignition power stage A, affecting spark generation.
OBD-II Code Hyundai
P1665 — Hyundai — Ignition Power Stage A Circuit Malfunction
The ECU detects a malfunction in ignition power stage A, affecting spark generation.
Common symptoms
- Ignition failure
- misfire
Possible causes
- Faulty ignition power module A
- wiring issues
Initial recommendation
Perform ignition system diagnostics and test power stage A 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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