ASE S6 Electrical/Electronic Systems (School Bus) case studies
ASE S6 Electrical/Electronic Systems (School Bus) · Put your knowledge to work in context.
The ASE School Bus S6 certification tests a technician's ability to diagnose and repair the electrical and electronic systems found on school buses. It is aimed at working techs who service yellow buses and their chassis - people who already know their way around a multimeter, a wiring diagram, and a scan tool but want to prove it in a credential employers and fleet shops recognize. The ASE S6 Electrical/Electronic Systems (School Bus) case studies are 5 cases and about 2,568 words.
1Intermittent No-Crank on a 2016 Type C Bus
A 2016 Type C conventional school bus with a 6.7 L diesel and an automatic transmission will not crank about one morning in five. The driver reports a single click from the right frame rail and then nothing; sometimes a second key cycle starts it normally.
583 words, about 3 min2Battery Drain Overnight on a Activity Bus
A fleet of four 2014 Type A activity buses each sit for 3–4 days between trips. Three of the four develop a no-start after sitting, and one has had both batteries replaced twice in six months.
515 words, about 3 min3Stop Arm and Warning Light Fault After Body Repair
A 2018 Type C bus returns from collision repair on the left rear quarter. The driver reports that the red warning lights and stop arm work when the master switch is on and the door is opened, but the crossing gate does not deploy, and the left rear amber warning light is dim.
501 words, about 3 min4Instrument Cluster and Speedometer Complaint
A 2019 Type C bus with a multiplexed dash reports that the speedometer reads about 8 mph high at highway speed, the fuel gauge fluctuates between 1/4 and 1/2, and the ABS warning lamp is on. The bus has a GPS tracking unit that logs vehicle speed.
493 words, about 2 min5Child-Check System Fails Only on Hot Afternoons
A district's 2020 Type C buses are equipped with a child-check system that requires the driver to walk to the rear and press a button within a set time after the ignition is turned off. On three buses, the system alarms falsely - the horn and lights activate - only on hot afternoons when the cabin exceeds about 95°F, and only when the bus has run a full route.
476 words, about 2 min