What does code P1787 mean on Audi vehicles?
The reversing light circuit is shorted to ground, causing reverse lights to malfunction or not illuminate.
OBD-II Code Audi
P1787 — Audi — Reversing Light Circuit Short to Ground
The reversing light circuit is shorted to ground, causing reverse lights to malfunction or not illuminate.
Common symptoms
- Reverse lights not functioning
Possible causes
- Short to ground
- damaged wiring insulation
Initial recommendation
Inspect wiring for shorts to ground and repair damaged sections.
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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