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P1D4F00 — Electric motor speed control – deviation during downshifting

Electric motor speed control – deviation during downshifting. The Taycan 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 P1D4F00

Porsche Taycan

Engine Control Module 1

How to read and clear P1D4F00

  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 P1D4F00 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 →

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Other codes of the Engine Control Module 1

P1D4900Speed sensor, transmission (output) – signal implausible
P1D4A00Transmission oil pump – speed deviation
P1D4B00Position sensor for dog clutch - actual position implausible, with clutch engaged
P1D4C00Position sensor for dog clutch – actual position implausible, with clutch disengaged
P1D4D00Position sensor for multi-plate clutch 2nd gear – actual position implausible with clutch engaged
P1D4E00Position sensor for multi-plate clutch 2nd gear – actual position implausible with clutch disengaged
P1D5000Electric machine speed control, deviation during shifting
P1D5100Electric machine speed control – deviation during upshifting
P1D6700Electric drive – complete failure
P212100Accelerator pedal sensor defective
P212200Accelerator pedal sensor – electrical fault
P212300Accelerator pedal sensor – electrical fault

All 274 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.