What does code P1586 mean on Hyundai vehicles?
The transmission control module reports implausible coding data, indicating configuration or software inconsistency.
OBD-II Code Hyundai
P1586 — Hyundai — Automatic Transmission Coding Signal Not Plausible
The transmission control module reports implausible coding data, indicating configuration or software inconsistency.
Common symptoms
- Fail-safe mode
- limited transmission operation
Possible causes
- Faulty TCM coding
- software corruption
- incorrect programming
Initial recommendation
Perform transmission software reprogramming and verify TCM coding.
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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