MTU 12V4000Gx5S Series Operating Instructions Manual page 171

1468 – AL_SD_p_Exh_DPFsys_outl_F2
Cause
The signal from the pressure
sensor / differential pressure
sensor at the pre-feed module of
the DOC/DPF (B91.2) is faulty or
missing.
1469 – AL_SD_dp_Exh_DPFsys_F2
Cause
The signal from the pressure
sensor / differential pressure
sensor at the pre-feed module of
the DOC/DPF (B91.2) is faulty or
missing.
1470 – AL_SD_p_Exh_DPFsys_inl_F3
Cause
The signal from the pressure
sensor / differential pressure
sensor at the pre-feed module of
the DOC/DPF (B91.2) is faulty or
missing.
1472 – AL_SD_p_Exh_DPFsys_outl_F3
Cause
The signal from the pressure
sensor / differential pressure
sensor at the pre-feed module of
the DOC/DPF (B91.2) is faulty or
missing.
1473 – AL_HI1_T_Exh_DPFsys_inl_F2
Cause
The exhaust gas temperature
before the DOC measured at
sensor B4.33 has violated limit 1
for the set time. The exhaust gas
temperature before the DOC
was/is too high.
Corrective action
1. Check pressure sensor / differential pressure sensor B91.2 and
replace as necessary.
2. Check engine cabling (→ Page 321).
3. Contact Service.
Corrective action
1. Check pressure sensor / differential pressure sensor B91.2 and
replace as necessary.
2. Check engine cabling (→ Page 321).
3. Contact Service.
Corrective action
1. Check pressure sensor / differential pressure sensor B91.2 and
replace as necessary.
2. Check engine cabling (→ Page 321).
3. Contact Service.
Corrective action
1. Check pressure sensor / differential pressure sensor B91.2 and
replace as necessary.
2. Check engine cabling (→ Page 321).
3. Contact Service.
Corrective action
1. Check sensor B4.33 and replace as necessary.
2. Contact Service.
MS15065/01E 2019-01 | Troubleshooting | 169