6-23
TROUBLESHOOTING
EXHAUST GAS CONTROL SYSTEM ERROR
LIMITING THE ENGINE OUTPUT
If the exhaust gas control system detects an error, the engine output is limited depending on
the type of fault.
Note: If the time interval between the fault repairing and error detecting is short, the regular
operation may be executed with a shorter pre operation.
: Normal
: Limited output
Pre operation 1: If an error is detected, the warning lamp turns on or starts flashing; the
engine output is not limited.
Pre operation 2: Pre operation 2 starts after pre operation 1 continues 3 hours and 15
minutes. The engine torque is reduced by 50%, compared to the normal operation.
Regular operation: Regular operation starts after the pre operation 2 continues 45 minutes.
The engine enters the idling state. The regular operation continues until the error is resolved.