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P065800 — Supply voltage for engine components - too low
Supply voltage for engine components - too low. The 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 P065800
How to read and clear P065800
- 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 P065800 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 PDK Transmission
| P061000 | Control unit - variant coding invalid |
| P061A00 | Internal Control Module Torque Performance |
| P061B00 | Internal Control Module Torque Calculation, Performance |
| P062F00 | Function restriction |
| P064F00 | Coding |
| P065700 | Supply voltage for engine components – open circuit |
| P065900 | Supply voltage for engine components - too high |
| P06B800 | Control unit - function restriction |
| P071000 | Temperature sensor (transmission oil) - electrical fault |
| P071100 | (Transmission oil) temperature sensor – implausible signal |
| P07B600 | Transmission Park Position Sensor/Switch "A" Circuit, Performance High |
| P080A00 | Multi-plate clutch, 2nd gear – adaptation required |
All 85 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.