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P0C4E00 — Rotor position sensor, number of calibration tests exceeded

Rotor position sensor, number of calibration tests exceeded. 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 P0C4E00

Porsche Taycan

Drive Motor Control Module

Porsche 911 (992)

Drive Motor Control ModuleEngine Control Module 1

Porsche Panamera (971, 2017–2023)

Drive Motor Control Module

Porsche Panamera (972, 2024–)

Drive Motor Control Module

Porsche Cayenne (9YA)

Drive Motor Control ModuleEngine Control Module 1

How to read and clear P0C4E00

  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 P0C4E00 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 →

Download STEUER14 — free fault reading

Other codes of the Drive Motor Control Module

P0BF000Electric machine, phase current W sensor - short circuit to B+
P0BFD00Electric machine, phase U-V-W sensors – signal implausible
P0BFF00Electric machine, fault - power
P0C0100Electric machine - current too high
P0C0500Electric machine, phases U-V-W - open circuit
P0C1700Rotor position sensor - position not learned
P0C5000Rotor position sensor - electrical fault
P0C5A00Rotor position sensor 2 - electrical fault
P0CA100MMI display request
P0CBD00Electric machine, coolant inlet temperature sensor – signal implausible
P0D2D00Electric machine, voltage sensor - electrical fault
P0D2E00Electric machine, current sensor – signal implausible

All 143 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.