Practice question
Before condemning an electronically controlled diesel engine for a mechanical fault, the technician should FIRST:
- Replace the engine
- Retrieve and analyze fault codes, freeze-frame, and live data to direct the mechanical diagnosis
- Replace the wiring harness
- Flush the cooling system
Answer: B — Retrieve and analyze fault codes, freeze-frame, and live data to direct the mechanical diagnosis
The correct answer is shown above. Try the full quiz for additional practice.
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