Computers and Control Systems: Service Precautions
WARNING:- Safety must be observed when using output test mode:
- When all outputs are on, the electric fuel pump is briefly energized, so make sure fuel system is intact and is not being serviced at this time.
- When low speed or high speed fan control(s) are turned on, make sure fan blades are clear of any obstruction.
- Strict observance of posted speed limits and attention to driving conditions are mandatory when proceeding through the drive cycles.