MTU 12V4000M*3 series Operating Instructions Manual page 158

397 – TD P-Lube Oil
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 ECU7
445 – SD P-Ambient Air
Cause
Ambient air pressure sensor
faulty.
464 – SD P-AUX 1
Cause
Analog input signal for Aux 1
pressure faulty; Short circuit or
wire break
156 | Troubleshooting | MS15036/00E 2018-08
ZKP-Number: 1.8004.625
Corrective action
1. Check sensor and cabling, replace as necessary.
2. Contact Service.
ZKP-Number: 1.8004.594
Corrective action
u Check sensor and cabling, replace as necessary.
ZKP-Number: 1.8004.604
Corrective action
u Check sensor and cabling (B3), replace as necessary.
ZKP-Number: 1.8004.578
Corrective action
u Replace ECU7.
ZKP-Number: 1.8004.580
Corrective action
1. Check pressure sensor and cabling, replace as necessary.
2. Replace engine governor.
ZKP-Number: 1.8004.589
Corrective action
u Check pressure sensor and cabling, replace as necessary.