MTU 12V4000M*3 series Operating Instructions Manual page 217

478 – AL Comb. Alarm Yel (Plant)
Yellow combined alarm from system
Yellow alarm; warning
Cause
Various causes possible.
479 – AL Comb. Alarm Red (Plant)
Red combined alarm from system
Red alarm
Cause
Various causes possible.
480 – AL Ext. Engine Protection
External engine protection function active
Yellow alarm; warning
Cause
The external engine protection
function is active.
Monitoring of plant signal by ECU
active (plant side).
482 – SD T-Exhaust C
Cause
Exhaust temperature sensor on A
side faulty. Short circuit or wire
break
483 – SD T-Exhaust D
Cause
Exhaust temperature sensor on A
side faulty. Short circuit or wire
break
ZKP-Number: 2.8006.001
Corrective action
u Check for additional messages.
ZKP-Number: 2.8006.002
Corrective action
u Check for additional messages.
ZKP-Number: 2.0291.921
Corrective action
1. Check plant signal.
2. Contact Service.
ZKP-Number: 18.004.596
Corrective action
u Check sensor and wiring (B4.23), replace as necessary.
ZKP-Number: 18.004.597
Corrective action
u Check sensor and wiring (B4.24), replace as necessary.
MS15036/00E 2018-08 | Troubleshooting | 215