Description
Product Overview
The ITCARDIAG MQB Short Circuit Wire is a precision‑engineered automotive cable designed for MQB smart box applications. Constructed from high‑quality, flexible PVC, the cable features a male‑to‑female connector that securely mates with the smart box and vehicle plug. Weighing only 0.15 kg, its lightweight yellow sheath offers excellent visibility during installation. The cable short‑circuits four wires simultaneously, enabling the instrument cluster to illuminate and begin data collection instantly after matching the smart card.
Usage
This cable is ideal for automotive technicians, tuners, and DIY enthusiasts working on MQB platforms. Connect one end to the smart box, the other to the vehicle plug, and the system will automatically recognize the short circuit, lighting the dashboard and initiating data logging. Perfect for performance tuning, fault diagnosis, and custom ECU mapping in both workshop and on‑road environments. 
Why Choose Us
ITCARDIAG delivers reliable, plug‑and‑play solutions backed by rigorous quality control. Each cable undergoes thorough testing for electrical continuity, durability, and resistance to wear. Our lightweight design reduces strain on connectors, while the bright yellow color minimizes installation errors. With a focus on precision engineering, we ensure consistent performance across all compatible MQB devices.
Key Features
- Lightweight yellow PVC cable for easy handling and clear visibility
- Male‑to‑female MQB connector ensures secure, reliable connections
- Short‑circuits four wires simultaneously to activate instrument clusters
- Plug‑and‑play design eliminates the need for complex wiring
- Compatible with MQB49 5C Cluster and other MQB smart box systems
FAQ
Does this cable support ELV short circuit?
No, the ITCARDIAG MQB short circuit wire is designed for the newest MQB smart short circuit technology and does not support ELV short circuit.
How do I install the cable?
Unplug the smart box, connect one end of the short‑circuit wire to the smart box and the other end to the vehicle plug. The system will automatically recognize the connection and illuminate the dashboard.
Can this cable be used with other vehicle models?
The cable is specifically engineered for MQB platforms and is compatible with devices that use the MQB49 5C Cluster interface. It may not function correctly with non‑MQB systems.
Is the cable durable for long‑term use?
Yes, the cable is made from high‑quality PVC and undergoes extensive durability testing to ensure it withstands repeated plug‑in cycles and harsh automotive environments.
What is the warranty period?
ITCARDIAG offers a one‑year limited warranty covering manufacturing defects for this short circuit wire.






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