18 © Scania Industrial & Marine Engines 2003-10:1
READING FAULT CODES
LED INDICATION WHEN THE LAMP TEST/FAULT CODE SWITCH IS ACTIVATED
CONTROL STATUS
SHUTDOWN
STARTING
RUNNING
TORQUE LIMIT
BOOST LIMIT
POWER -
POWER +
Probable cause Action
<
DEC2 has detected an internal fault in the control unit.
Send in the control unit for repair as soon as
possible.
<
The engine temperature has reached the threshold level
or the temperature sensor is inoperative.
Check the cooling system. Check the
temperature sensor and cable routing.
<
The engine has reached the overrevving limit or the
engine speed sensor is inoperative.
Check the wiring and connector. Renew the
engine speed sensor.
<
Control rack position sensor inoperative. Check connectors and cables to governor.
<
The intake air temperature has reached the threshold
level or the charge air temperature sensor is
inoperative.
Check the intake system. Check the temperature
sensor and cable routing.
<
DEC2 detects no charge air pressure.
The charge air pressure sensor is inoperative.
Check the charge air pressure cable. Send in the
control unit if the connection is damaged.
<
Engine speed potentiometer or the idling safety switch
is inoperative.
Check the cable routing, connectors and cables.
<
The oil pressure has dropped to the threshold level or
the oil pressure monitor is inoperative.
Check oil level, connector and cable. Renew the
oil pressure monitor.
<= LED is on
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