MTU 12V2000Gx6 series Operating Instructions Manual page 90

229 – AL Stop Camshaft Sensor Defect
Red alarm; emergency stop
Cause
Engine stop due to camshaft
sensor fault and a previous
crankshaft sensor fault in the
same operating cycle.
230 – SD Crankshaft Speed
Yellow alarm; warning
Cause
Crankshaft sensor faulty.
231 – SD Camshaft Speed
Yellow alarm; warning
Cause
Camshaft sensor faulty.
239 – SD P-Diff Fuel
Yellow alarm; warning
Cause
Fuel pressure sensors faulty.
240 – SD P-Fuel
Yellow alarm; warning
Cause
Fuel pressure sensor before
intermediate filter faulty.
245 – SD ECU Power Supply Voltage
Yellow alarm; warning
Cause
Internal ECU fault.
90 | Troubleshooting | MS15054/03E 2018-07
Corrective action
1. Check sensor and wiring to connectors B1 and B13, replace as
necessary (→ Page 221).
2. Acknowledge alarm.
3. Restart engine (→ Page 67).
Corrective action
1. Check sensor B13 and wiring, replace as necessary (→ Page 221).
2. Fault is rectified when engine is restarted, contact Service if this is
not the case.
Corrective action
1. Check sensor B1 and wiring, replace as necessary (→ Page 221).
2. Fault is rectified when engine is restarted, contact Service if this is
not the case.
Corrective action
u Check sensor B34.2, sensor 34.3 and wiring, replace as necessary
(→ Page 221).
Corrective action
u Check sensor B34.3 and wiring, replace as necessary
(→ Page 221).
Corrective action
u Replace Engine Control Unit.