MTU 20 V 4000 M93 x Operating Instructions Manual page 102

390 – AL MCR exceeded
Cause
DBR/MCR feature: MCR
(maximum continuous rating)
was exceeded.
396 – TD T-Coolant Sensor Deviation
Cause
Maximum deviation of coolant
temperature values from
sensors
397 – TD P-Oil Sensor Deviation
Cause
Maximum deviation of lube oil
pressure values from sensors
417 – SD Level Water Fuel Prefilter
Cause
Water level sensor in fuel
prefilter faulty; Short circuit or
wire break
419 – SD T-Coolant b.Engine
Cause
Coolant inlet temperature
sensor faulty; Short circuit or
wire break
444 – SD U-PDU
Cause
Injector power stage sensor
defect; Internal fault in ECU 7.
102 | Troubleshooting | MS150048/04E 2013-07
ZKP-Number: 11.085.009
Corrective action
1. If the alarm occurs temporarily, no action required.
2. If the alarm is permanently active, contact Service.
ZKP-Number: 10.480.193
Corrective action
1. Check sensor and cabling, replace as necessary.
2. Contact Service.
ZKP-Number: 10.480.293
Corrective action
1. Check sensor and cabling, replace as necessary.
2. Contact Service.
ZKP-Number: 18.004.594
Corrective action
u Check sensor and cabling, replace as necessary.
ZKP-Number: 18.004.604
Corrective action
u Check sensor and cabling (B3), replace as necessary.
ZKP-Number: 18.004.578
Corrective action
u Replace ECU 7.