MTU 12 V 4000 M23F Operating Instructions Manual page 161

850 – SD Alive FIP
Frequency input faulty.
Cause
Short circuit or wire break.
Fault in Backup ECU, Alive signal
not transmitted
856 – SD P-Lube oil ETC B
Cause
ETC oil pressure sensor faulty.
858 – AL L1 P-Lube Oil ETC B
Limit value 1
Cause
Lube oil pressure too low.
867 – AL L1 P-Lube Oil ETC A
Limit value 1
Cause
Lube oil pressure too low.
868 – AL L2 P-Lube Oil ETC A
Limit value 2
Cause
Lube oil pressure too low.
869 – AL L2 P-Lube Oil ETC B
Limit value 2
Cause
Lube oil pressure too low.
ZKP-Number: 2.0900.002
Corrective action
u -
ZKP-Number: 1.0223.920
Corrective action
u Check sensor and wiring, replace as necessary.
ZKP-Number: 1.0223.921
Corrective action
u Check ETC oil lubrication.
ZKP-Number: 1.0222.923
Corrective action
u Check ETC oil lubrication.
ZKP-Number: 1.0222.924
Corrective action
u Check ETC oil lubrication.
ZKP-Number: 1.0223.922
Corrective action
u Check ETC oil lubrication.
MS150068/01E 2014-01 | Troubleshooting | 161