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U042000 — Invalid Data Received From Power Steering Control Module
Invalid Data Received From Power Steering Control Module. 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 U042000
How to read and clear U042000
- 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 U042000 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 Front Assist Camera
| C1338F1 | Innodrive, not available |
| C135AF0 | zFAS platform, Internal malfunction |
| U008100 | Vehicle Communication Bus F Performance |
| U008A00 | Vehicle Communication Bus G Performance |
| U040100 | Engine electronics (DME) control unit – signal implausible |
| U040200 | Transmission control unit, signal implausible |
| U043300 | Data bus - message implausible |
| U043500 | Data bus - missing message |
| U044300 | Data bus - fault value received |
| U044700 | Gateway control unit – signal implausible |
| U045200 | Airbag control unit - signal implausible |
| U049A00 | Control unit for door on driver side - signal implausible |
All 336 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.