Case Type: Technical Electrical Diagnostic Case Analysis
Application: Electronic Diesel Injector Circuit
Diagnostic Focus: Connector Moisture / Terminal Resistance
A circuit can show continuity during workshop testing while intermittently failing during engine operation.
A passing resistance check confirms the circuit was continuous during that measurement.
It does not prove the connection remains stable under all mechanical and electrical conditions.
Possible clues include:
Replacing the actuator leaves the same contaminated connector in the circuit.
For the full diagnostic reasoning, see Technical Guide: Why Injector Connector Moisture Can Cause Intermittent Electrical Faults Without a Permanent Open Circuit.
Intermittent electrical faults require evaluation of connection quality, not just binary open/closed continuity.
