Curriculum
Module 06intermediate
Wiring, Connectors & Harness Diagnosis
Learn how automotive wiring is built, how connectors fail, how to inspect/load-test conductors and how to make durable professional repairs.
Lessons
10
Estimated time
200 min
Completed
00/10
By the end of this module
Find harness faults that continuity testing hides, and repair them to a professional standard.
Lessons
10 total
- 01Automotive Wire Construction and SizingRelate wire size and construction to circuit load and failure behaviour.20 min
- 02Wire Identification, Colours and LabellingUse documentation and connector IDs rather than guessing from wire colour.20 min
- 03Connector Anatomy and Terminal TypesInspect connectors systematically and understand common mechanical failures.20 min
- 04Terminal Tension and Contact ResistanceRecognise a connector that passes continuity but fails under load.20 min
- 05Splices, Junctions and Hidden ConnectionsUse a wiring diagram to identify one hidden splice causing multiple symptoms.20 min
- 06Twisted Pair, Shielded and Coaxial WiringPreserve special cable construction and recognise faults caused by poor repairs.20 min
- 07Harness Chafing, Flexing and Intermittent FaultsDiagnose intermittent opens/shorts without relying on random harness movement.20 min
- 08Water Ingress and Corrosion MigrationTrace water-related faults beyond the visibly damaged connector.20 min
- 09Professional Automotive Wiring RepairsChoose a repair method that restores electrical and mechanical integrity.20 min
- 10Diagnostic Case: Intermittent Harness FaultIsolate an intermittent wiring fault and verify the repair.20 min