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Question

How to diagnose faulty power distribution module (PDM) in modern vehicles?

Answer

Monitor module output voltages and test fuse/relay functionality.

Explain

A faulty PDM causes multiple system power faults. CHEPQ tools test PDM output voltages and relay operation—replacing the module or faulty relays/fuses resolves the issue.

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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