Curriculum
Module 04foundation
Starting & Cranking Systems
Diagnose conventional and ECU-controlled starting systems, including starter current, solenoid operation, start authorisation and start-stop.
Lessons
10
Estimated time
200 min
Completed
00/10
By the end of this module
Diagnose click, no-crank, slow-crank and intermittent starting with evidence, not parts.
Lessons
10 total
- 01Starter Motor Construction and OperationExplain what physically happens from start request to engine cranking.20 min
- 02The Starter Main Power CircuitTrace and test the high-current starter path.20 min
- 03The Starter Control CircuitTrace the low-current command path and identify missing start requests.20 min
- 04Cranking Voltage and Starter CurrentCombine voltage and current evidence to separate battery, cable, starter and mechanical faults.20 min
- 05Positive-Side Voltage DropLocate resistance on the starter positive path.20 min
- 06Ground-Side Voltage DropProve poor engine/chassis grounds under real cranking load.20 min
- 07No Click, Click, Slow Crank and Intermittent CrankChoose the first useful test based on the exact cranking symptom.20 min
- 08ECU-Controlled Start AuthorisationUnderstand why a healthy starter may not receive a crank command.20 min
- 09Start-Stop and Integrated Starter ConceptsRecognise how modern starting strategies differ from a simple ignition-switch circuit.20 min
- 10Diagnostic Case: Modern No-CrankDiagnose a modern no-crank logically from symptom to verified root cause.20 min