WCU – Water Tank Control Unit: fault codes
All 18 fault codes of the Porsche 911 (992) WCU – Water Tank Control Unit with the manufacturer's names. How to read and clear them with STEUER14.
| Code | Fault |
|---|---|
| B184C00 | Release active |
| B200500 | Coding |
| B200600 | Control module does not match vehicle |
| B201200 | Coding |
| P060600 | Control unit defective |
| P060C00 | Function restriction |
| P061000 | Control unit - variant coding invalid |
| P066600 | Busbar PLUS rear axle - temperature too high |
| P06AB00 | Busbar MINUS, temperature sensor - short circuit to B+ |
| U010000 | Engine electronics (DME) control unit – no communication |
| U014000 | Front-end electronics control unit (BCM1) - missing message |
| U110300 | Production mode active |
| U110400 | Expanded bus operation active |
| U112100 | Data bus - missing message |
| U112300 | Data bus – fault value received |
| U120000 | Data bus, Faulty |
| U120100 | Data bus, No communication |
| U12DB00 | Engine control module (ECM), received malfunction value |
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.