MTU 12V2000Gx6 series Operating Instructions Manual page 91

266 – SD Speed Demand
Yellow alarm; warning
Cause
Analog speed setting faulty.
269 – SD Loadp. Analog fil.
Yellow alarm; warning
Cause
Filtered analog signal of load
pulse missing.
270 – SD Frequency Input
Yellow alarm; warning
Cause
Frequency input faulty.
321 – AL Wiring Cylinder A1
Yellow alarm; warning
Cause
Short circuit in cylinder A1
injector wiring. Result: Misfiring.
322 – AL Wiring Cylinder A2
Yellow alarm; warning
Cause
Short circuit in cylinder A2
injector wiring. Result: Misfiring.
323 – AL Wiring Cylinder A3
Yellow alarm; warning
Cause
Short circuit in cylinder A3
injector wiring. Result: Misfiring.
Corrective action
1. Check speed setting transmitter and wiring, replace as necessary
(→ Page 221).
2. Fault is rectified when engine is restarted.
Corrective action
1. Check wiring, replace as necessary.
2. Fault is rectified when engine is restarted.
Corrective action
1. Check speed setting transmitter and wiring, replace as necessary
(→ Page 221).
2. Fault is rectified when engine is restarted.
Corrective action
1. Check injector wiring.
2. Rectify injector solenoid valve short circuit (positive to negative)
(e.g. by exchanging injectors).
3. Fault is rectified when engine is restarted.
Corrective action
1. Check injector wiring.
2. Rectify injector solenoid valve short circuit (positive to negative)
(e.g. by exchanging injectors).
3. Fault is rectified when engine is restarted.
Corrective action
1. Check injector wiring.
2. Rectify injector solenoid valve short circuit (positive to negative)
(e.g. by exchanging injectors).
3. Fault is rectified when engine is restarted.
MS15054/03E 2018-07 | Troubleshooting | 91