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C059A00 — Power Steering Control Module - Rear Missing Calibration

Power Steering Control Module - Rear Missing Calibration. 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 C059A00

Porsche Taycan

Porsche 911 (992)

Porsche Panamera (971, 2017–2023)

Porsche Panamera (972, 2024–)

Porsche Cayenne (9YA)

How to read and clear C059A00

  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 C059A00 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 Brake Electronics

C055E00Primary Brake Circuit Hydraulic Leak
C055F00BSCM/EBBC Hydraulic Unit Performance
C056100Vacuum Sensor "A/B" Correlation
C056300ABS Control Module Performance
C058F00Recuperation torque, signal implausible
C059800Brake System Control Module "B" Performance
C100C01Electro-mechanical parking brake button, Electrical error
C100C07Electro-mechanical parking brake button, mechanical malfunction
C100D11Left locking motor power supply - short circuit to ground
C100D12Left locking motor power supply - short circuit to B+
C100D13Left Parking Brake Motor voltage supply, Open circuit
C100E11Right locking motor power supply - short circuit to ground

All 317 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.