Doosan 25/300, Electronic Service Manual

Page: 67 / 119

Book 22772784 (9/08/06) 65
COMPRESSOR CODE 73
Auto Start Stop Controller Communications Failure
Explanation:
The WEDGE has not been able to communicate with the Auto Start Stop
controller for 17 seconds. A communications failure is determined.
Effect:
Code 73 is an ALERT condition and will not stop the machine. The Auto Start
system may not function properly due to communications failure.
TROUBLESHOOTING STEPS
Code 73
Action
Result
Step1:
If CAN communications is OK with the engine, check the CAN-
power stub connection for the Auto Start module. If CAN with
the engine is not working, check CAN wiring in harness.
Step 2:
Verify the Auto Start controller has power and ground.
Step 3:
Replace the Auto Start module.