Title: Inspect the operation of an automatic transmission.
Course: Diesel Equipment Technology III (20107-III) > Section: Drive Train: Servicing the Transmission

Inspection should include

- electronic or air shift controls
- shift solenoids
- shift motors
- indicators
- speed and range sensors
- electronic/transmission control units (ECU/TCU)
- neutral/in gear and reverse switches
- wiring harnesses.

Inspection should also include

- referencing the OEM instruction for troubleshooting steps
- inspecting the shifter for proper operation and lighting according to the OEM
- verifying that all harnesses are in good condition.

Process/Skill Questions:

- What would a flashing electronic shifter indicate?
- What would a blank shifter indicate?