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U183700 — Real-time monitoring, checking of the warning report active

Real-time monitoring, checking of the warning report active. The Taycan, Panamera (971), Panamera (972) and Cayenne report this code; below is which control unit sets it on each model and how to read and clear it.

Which models and control units set U183700

Porsche Taycan

Porsche Panamera (971, 2017–2023)

Porsche Panamera (972, 2024–)

Porsche Cayenne (9YA)

How to read and clear U183700

  1. Plug a standard ENET (Ethernet-to-OBD) cable into your Porsche's OBD port and your Mac or Windows PC.
  2. Open STEUER14, pick your car and run a fault scan: every control unit is read, and U183700 shows with its status, its full description and the freeze frame when the unit stores one.
  3. Fix the cause first, then clear the fault memory and scan again to check it stays away. Reading and clearing fault codes is free on every control unit.

More about fault memory in the manual →

Download STEUER14 — free fault reading

Other codes of the Telematics Diagnostic Unit

U120000Data bus, Faulty
U14BF00CAN bus, Electrical malfunction
U153E00Emergency call module and communication unit, Recognition in mobile communications network not possible
U167900Distance, calculation incorrect
U17CD00Vehicle-to-everything (V2X), safety restriction
U183600Real-time monitoring, authorized backend connection active
U183800Real-time monitoring, local caching active
U183900Real-time monitoring, local caching overloaded
U184A00Backend Real Time Monitoring, registration of the APN access point failed
U18E600Backend Real Time Monitoring, DNS requests failed
U18E700Backend Real Time Monitoring, TCP connection failed
U18E800Backend Real Time Monitoring, Authorized backend connection failed

All 51 codes of this control unit →

Fault names come from the manufacturer's diagnostic data. STEUER14 is independent and not affiliated with Porsche AG. A code tells you what a control unit detected, not always which part failed — check wiring, supply voltage and related codes before replacing parts. STEUER14 shows each fault's full description, status and freeze frame on the car.