Cert III Auto Electrical case studies
Cert III Auto Electrical · Put your knowledge to work in context.
The AUR30320 Certificate III in Automotive Electrical Technology is an Australian vocational qualification reflecting the role of people who service, diagnose and repair electrical systems and components in vehicles within the automotive electrical service and repair industry. It suits apprentices and existing technicians who want a formal, nationally recognised credential for automotive electrical work, including light vehicle, heavy vehicle and emerging electric and hybrid technologies depending on the electives chosen. The Cert III Auto Electrical case studies are 5 cases and about 2,333 words.
1Intermittent No-Crank on a 2012 Diesel Utility
A 2012 diesel ute arrives with an intermittent no-crank. The customer reports it happens about once a week, always after the vehicle has sat overnight in cold weather, and a jump start gets it going.
506 words, about 3 min2Charging System Under Load on a Fleet Van
A fleet operator brings in a light commercial van complaining that the battery warning lamp flickers at night when lights, wipers, and the rear demister are all on. The van has a 110 A alternator and a 90 Ah battery.
477 words, about 2 min3Parasitic Drain Diagnosis on a Modern Ute
A 2019 ute with keyless entry and a factory alarm is returned twice with a flat battery after sitting for three days. The battery is healthy and the charging system tests normal.
462 words, about 2 min4Body Control Module Fault After a Jump Start
A customer jump-started a 2015 sedan with the leads connected in reverse for a few seconds. The engine now cranks but will not start, the instrument cluster is dead, and several interior lights stay on.
453 words, about 2 min5Safety and Isolation on a High-Voltage Hybrid Service
A hybrid vehicle is booked for replacement of a 12 V auxiliary battery and a check of the charging system. The workshop manual states the high-voltage system must be isolated before any work near the orange cables.
435 words, about 2 min