For decades, the name "PIWIS" (Porsche Integrated Workshop Information System) has been synonymous with deep-level, dealer-grade diagnostics for one of the world’s most sophisticated automotive brands. Now, Porsche has officially rolled out its latest generation: PIWIS Tester 4 .
Porsche 911 (991, 992), Cayenne (92A, 9YB), Panamera (970, 971, 972), Macan, and Boxster/Cayman (981, 718).
The PIWIS 4 offers comprehensive functionality for both general maintenance and complex repair scenarios:
The PIWIS Tester 4 is the ultimate diagnostic weapon for the Porsche ecosystem. By combining high-speed data protocols like CAN-FD with deep-level engineering programming access, it ensures that technicians can accurately diagnose, service, and program any Porsche vehicle from legacy water-cooled models to the latest high-voltage electric hypercars.
With Porsche’s aggressive shift towards electrification, the PIWIS 4 is specifically designed to handle high-voltage battery diagnostics, electric motor calibration, and inverter diagnostics. It provides deep, detailed data on battery health and charging systems, essential for the Taycan and E-Hybrid models. 3. Integrated Online Connectivity (PIWIS Online) piwis tester 4
The (Integrated Workshop Information System IV) is the latest factory diagnostic system used by authorized Porsche dealerships and high-end independent workshops. As the successor to the PIWIS 3, this tool is engineered to handle the complex electronic architectures of the newest Porsche models, including advanced electric vehicle (EV) platforms like the Taycan. Core Capabilities and Functions
The aftermarket features various "engineered" versions of the PIWIS software running on standard laptops paired with high-quality dual-boot VCIs. While these setups are much more affordable and highly effective for offline diagnostics, maintenance resets, and manual coding on older models, they often lack the secure server access required to perform online programming on newer vehicles.
From routine maintenance to complex troubleshooting, the PIWIS 4 is an invaluable ally. Here are a few common issues it can resolve:
PIWIS Tester 4 is a diagnostic tool developed by Porsche specifically for their vehicles. It is designed to diagnose and repair a wide range of issues with your Porsche, from simple problems like faulty brake lights to complex issues like engine and transmission problems. The PIWIS Tester 4 is the latest iteration of the PIWIS diagnostic tool, offering advanced features and capabilities that make it an essential tool for any Porsche owner or mechanic. For decades, the name "PIWIS" (Porsche Integrated Workshop
The is the official, authorized diagnostic and programming tool used by Porsche technicians worldwide. It acts as the bridge between the technician and the car’s complex network of Electronic Control Units (ECUs).
The PT4G VCI acts as the bridge between the vehicle's OBDII port and the laptop.
Reading and clearing fault codes (DTCs) across all vehicle modules.
Unlike generic OBD2 scanners that can only read basic engine codes, the PIWIS 4 communicates directly with all control modules in a Porsche, including the ECU, TCU, PASM (suspension), PCM (infotainment), and ABS systems. Key Features of the PIWIS 4 The PIWIS 4 offers comprehensive functionality for both
If you are interested in learning more about the PIWIS Tester 4 or would like to purchase one, here are some additional resources:
Opens and closes electronic parking brake calipers for brake pad changes.
Calibrates, fills, or vents the air suspension system on the Cayenne, Panamera, and Taycan.