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Question

How to diagnose faulty automotive wiring harness temperature sensor?

Answer

Monitor sensor resistance and test for overheating.

Explain

A faulty wiring harness temperature sensor fails to detect overheating. CHEPQ tools measure sensor resistance (decreases with temperature) and test response to heat (>10% resistance change at 60℃), replacing the sensor—preventing wiring harness fires.

Related Diagnostic Guide

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

Related Guide: Vehicle Power Distribution & Grounding 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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