MTU 16V4000L32FNER Operating Instructions Manual page 136

266 – SD Speed Demand
Red alarm.
Associated parameter 2.8006.586
Cause
Speed setting signal can no longer
be transmitted from plant.
381 – AL Wiring TOP 1
Yellow alarm.
Associated parameter 2.8006.638
Cause
Short circuit or line break at
transistor output 1 system-side
(TOP 1). Activation of yellow
summary alarm faulty.
382 – AL Wiring TOP 2
Red alarm.
Associated parameter 2.8006.639
Cause
Short circuit or line break at
transistor output 2 system-side
(TOP 2). Activation of red
summary alarm faulty.
383 – AL Wiring TOP 3
Red alarm.
Associated parameter 2.8006.640
Cause
Short circuit or line break at
transistor output 3 system-side
(TOP 3). Activation of gas supply
solenoid valve No.1 faulty.
384 – AL Wiring TOP 4
Red alarm.
Associated parameter 2.8006.641
Cause
Short circuit or line break at
transistor output 4 system-side
(TOP 4). Activation of gas supply
solenoid valve No. 2 faulty.
136 | Troubleshooting | MS150121/02E 2017-09
Corrective action
1. Check engine governor setting (default setting is speed demand via
CAN bus).
2. Check signal and cabling between plant and ECU.
Corrective action
u Check cabling (→ Page 202).
Corrective action
u Check cabling (→ Page 202).
Corrective action
u Check cabling (→ Page 202).
Corrective action
u Check cabling (→ Page 202).