MTU 12 V 4000 L62FB Operating Instructions Manual page 104

219 – SD T-Intake Air
Yellow alarm.
Associated parameter 1.8004.573
Cause
Intake air temperature sensor
defective, short circuit or wire
break.
221 – SD P-Diff Lube Oil
Red alarm.
Associated parameter 1.8004.585
Cause
Engine oil pressure sensors
defective, short circuit or wire
break.
227 – SD Oil Pressure before Filter
Yellow alarm.
Associated parameter 1.8004.620
Cause
Engine oil pressure sensor before
filter defective, short circuit or
wire break.
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.
104 | Troubleshooting | MS150098/02E 2016-11
Corrective action
u Check sensor and cabling (B49.2), replace as necessary. Fault is
rectified when engine is restarted.
Corrective action
u Check sensor and cabling before filter (B5.3) and after filter (B5.1),
replace as necessary. Fault is rectified following engine restart.
Corrective action
u Check sensor and cabling (B5.3), replace as necessary. Fault is
rectified following engine restart.
Corrective action
u Check sensor and cabling (B1.1), replace if necessary. Fault is
rectified following engine restart.
Corrective action
u Check sensor and cabling (B1.1), replace if necessary. Fault is
rectified following engine restart.