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U020000 — Door control unit, passengerʼs side - no communication
Door control unit, passengerʼs side - no communication. The Taycan, 911 (992), 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 U020000
How to read and clear U020000
- Plug a standard ENET (Ethernet-to-OBD) cable into your Porsche's OBD port and your Mac or Windows PC.
- Open STEUER14, pick your car and run a fault scan: every control unit is read, and U020000 shows with its status, its full description and the freeze frame when the unit stores one.
- 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 readingOther codes of the Air Conditioning
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| U015100 | Airbag control unit - missing message |
| U015500 | Instrument cluster control unit - missing message |
| U016600 | Auxiliary heater control unit - no communication |
| U016B00 | Electric air-conditioning compressor (V470), no communication |
| U019900 | Driver-side door control unit - no communication |
| U020100 | Control unit for door on rear driver’s side - no communication |
| U020200 | Control unit for door on rear passenger’s side - no communication |
| U020700 | Control unit for front panoramic roof - no communication |
| U020A00 | Control unit for rear panoramic roof - no communication |
| U021200 | Steering wheel electronics control unit – missing messages |
| U040100 | Engine electronics (DME) control unit – signal implausible |
All 418 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.