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Question

What causes automotive CAN bus twisted pair " impedance mismatch" ?

Answer

Improper wire gauge and insulation damage.

Explain

Impedance mismatches cause signal reflections. CHEPQ advises using OEM-specified wire gauge and inspecting insulation for damage—maintaining proper impedance and signal integrity.

Related Diagnostic Guide

To explore this topic in a broader system-level diagnostic context:

Related Guide: CAN & LIN Vehicle Network Diagnostics

Recommended Diagnostic Solutions

To apply the diagnostic concepts discussed above in real-world scenarios, explore our full range of professional automotive diagnostic tools. These solutions are designed to support battery testing, system diagnostics, and data analysis for modern vehicles and workshop environments.

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