MTU MS15027/02E Operating Instuctions page 131

517 – SD P-Charge Mix before Throttle
Red alarm.
Associated parameter 1.8004.631
Cause
Mixture pressure sensor before
throttle defective, short circuit
or wire break.
520 – SD P-Intake Air after Filter A
Yellow alarm.
Associated parameter 1.0186.900
Cause
Intake air pressure sensor after
filter on A side defective, short
circuit or wire break.
522 – SD P-Intake Air after Filter B
Yellow alarm.
Associated parameter 1.0187.900
Cause
Intake air pressure sensor after
filter on B side defective, short
circuit or wire break.
534 – HIHI Power Difference
Red alarm.
Associated parameter 2.1005.931
Cause
Set and actual power deviate
excessively from one another.
535 – LOLO Power Difference
Red alarm.
Associated parameter 2.1005.921
Cause
Set and actual power deviate
excessively from one another.
Corrective action
u Check sensor and cabling (B79.23), replace if necessary. Fault
is rectified following engine restart.
Corrective action
u Check sensor and cabling (B81.1), replace if necessary. Fault is
rectified following engine restart.
Corrective action
u Check sensor and cabling (B81.2), replace if necessary. Fault is
rectified following engine restart.
Corrective action
1. Check converter.
2. Check fuel settings.
3. Check emissions.
Corrective action
1. Check converter.
2. Check fuel settings.
3. Check emissions.
MS15027/02E 2015-04 | Troubleshooting | 131