Eberspacher Airtronic Wiring Harness Diagnostic Port Cap for Ax2 Ax3 252720801100

The Eberspacher Airtronic Wiring Harness Diagnostic Port Cap is a required component for error-free installation of Ax2 and Ax3 harnesses. This diagnostic plug cover includes a built-in resistor and is essential for proper CAN wiring integration across multiple Airtronic and Hydronic models. It is designed to be used with wiring harness part numbers 252720801100, 252652801100, and 252933801100, and is suited for a range of Eberspacher units including Airtronic S2, M2, S3, M3, L3, and XL3 models, as well as Hydronic S3 and D5E configurations. Please note that the wiring harness is not included. The cap’s compatibility ensures reliable diagnostics and stable operation in climate control installations without compromising system performance.