What does code P1746 mean on Audi vehicles?
A malfunction has been detected in the TCM relay.
OBD-II Code Audi
P1746 — Audi — Transmission Control Unit Relay Malfunction
A malfunction has been detected in the TCM relay.
Common symptoms
- Transmission in emergency mode.
Possible causes
- Defective relay.
Initial recommendation
Replace TCM relay.
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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