MTU 12V4000M*3 series Operating Instructions Manual page 214

456 – AL L2 Aux1 Plant
Limit value 2
Cause
Input signal of Aux 1 (plant side)
has exceeded/not attained limit
value 2, depending on
configuration.
460 – HI T-Exhaust EMU
Limit value 1
Cause
EMU exhaust gas temperature
value too high.
461 – LO T-Exhaust EMU
Limit value 1
Cause
EMU exhaust gas temperature
value too low.
462 – HI T-Coolant EMU
Limit value 1
Cause
EMU coolant temperature value
too high / low.
464 – SD P-AUX 1
Cause
Analog input signal for Aux 1
pressure faulty; Short circuit or
wire break.
212 | Troubleshooting | MS15036/00E 2018-08
ZKP-Number: 2.8006.651
Corrective action
u Determine cause of limit value violation and rectify fault.
ZKP-Number: 2.8006.652
Corrective action
1. Check wiring.
2. Contact Service.
ZKP-Number: 2.8006.653
Corrective action
1. Check wiring.
2. Contact Service.
ZKP-Number: 2.8006.654
Corrective action
u Check configuration with DiaSys.
ZKP-Number: 1.8004.589
Corrective action
u Check pressure transmitter and wiring, replace as necessary.
Fault is rectified when engine is restarted.