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P064300 — Sensor voltage 1 - short circuit to B+

Sensor voltage 1 - short circuit to B+. 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 P064300

Porsche Taycan

Porsche 911 (992)

Porsche Panamera (971, 2017–2023)

Porsche Panamera (972, 2024–)

Porsche Cayenne (9YA)

How to read and clear P064300

  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 P064300 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 Engine Control Module 1

P060600Control unit defective
P060C00Function restriction
P061500Starter relay, control line - open circuit
P061600Starter relay, control line - short circuit to ground
P061700Starter relay, control line - short circuit to B+
P064200Sensor voltage 1 - short circuit to ground
P064F00Coding
P065200Sensor voltage 2 - short circuit to ground
P065300Sensor voltage 2 - short circuit to B+
P068500Main relay, control line - open circuit
P068600Main relay, control line - short circuit to ground
P068700Main relay, control line - short circuit to B+

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.