MTU 20V4000Lx2x Operating Instructions Manual page 109

229 – AL Stop Camshaft Sensor Defect
Red alarm. Engine shutdown.
Associated parameter 1.8004.562
Cause
Engine stop due to camshaft
sensor fault (and a previous
crankshaft sensor fault in the
same operating cycle).
231 – SD Camshaft Speed
Red alarm. Engine shutdown.
Associated parameter 1.8004.499
Cause
Camshaft sensor defective, short
circuit or wire break.
232 – SD ETC Speed 1
Yellow alarm.
Associated parameter 1.3011.128
Cause
Speed sensor of primary
turbocharger defective, short
circuit or wire break.
233 – SD ETC Speed 2
Yellow alarm.
Associated parameter 1.3011.129
Cause
Speed sensor of secondary
turbocharger defective, short
circuit or wire break.
245 – SD ECU Power Supply Voltage
Red alarm.
Associated parameter 2.8006.589
Cause
Internal Engine Control Unit fault.
Corrective action
u Check sensor and cabling (B1.1), replace as necessary. Fault is
rectified following engine restart.
Corrective action
u Check sensor and cabling (B1.1), replace as necessary. Fault is
rectified following engine restart.
Corrective action
u Turbocharger speed sensor is not fitted at present.
Corrective action
u Turbocharger speed sensor is not fitted at present.
Corrective action
u Replace ADEC Engine Control Unit.
MS150122/00E 2015-07 | Troubleshooting | 109