A customer complaint, one hidden fault, and your test results. Diagnose before revealing the answer.
1 · Service ticket
Select “Start new job” to receive a customer complaint.
Training mode: each job contains one simplified fault. There is no timer or penalty for testing.
2 · Operate the vehicle
3 · Inspect the lamps
FRONT OF VEHICLE
REAR OF VEHICLE
Operate the vehicle to inspect its lights.
Turn and hazard lamps flash in a repeating on/off cycle. Some real vehicles use different wiring and bulb-failure strategies.
4 · Measure the circuit
12.6 V
Select a test point and operate its circuit.
A reading of 0 V may be normal with the command OFF. Activate the relevant circuit before interpreting the measurement. Readings are approximate teaching values, not vehicle specifications.
5 · Submit your diagnosis
Educational simplification: individual fuses, conventional bulbs, 12.6 V supply and static measurements. Real systems may use BCMs, LED modules, PWM, shared circuits and manufacturer-specific diagnostics.