MTU 12V4000Gx5S Series Operating Instructions Manual page 148

735 – AL_HI1_dp_Exh_DPFsys_F1
Cause
The differential pressure through
the DPF measured at sensor
B91.2 has violated limit value 1.
The differential pressure is too
high.
736 – AL_HI2_dp_Exh_DPFsys_F1
Cause
The differential pressure through
the DPF measured at sensor
B91.2 has violated limit value 2.
The differential pressure is too
high.
737 – AL L1 P-DPF 1 Norm Difference
Cause
The DPF soot load, calculated on
the basis of the differential
pressure measured at sensor
B91.2, has violated limit value 1.
Soot loading is high.
738 – AL L2 P-DPF 1 Norm Difference
Cause
The DPF soot load, calculated on
the basis of the differential
pressure measured at sensor
B91.2, has violated limit value 2.
Soot loading is high.
739 – AL L3 P-DPF Norm Difference
Cause
The DPF soot load, calculated on
the basis of the differential
pressure measured at sensor
B91.2, has violated limit value 3.
Soot loading is high.
146 | Troubleshooting | MS15065/01E 2019-01
Corrective action
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Corrective action
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