647 – SD P-Exhaust Lambda
ZKP-Number: 1.0163.900
Yellow alarm; warning
Cause
Corrective action
Exhaust pressure sensor near
lambda sensor faulty; short
circuit or wire break.
1. Check sensor B91.3 and wiring, replace as necessary.
2. Restart engine (→ Page 29).
648 – SD P-Charge Air B
ZKP-Number: 1.0149.900
Yellow alarm; power limitation < 20%;
Cause
Corrective action
Charge-air pressure sensor on B-
side faulty; short circuit or wire
break.
1. Check sensor B10 and wiring, replace as necessary .
2. Restart engine (→ Page 29).
662 – SD Smart NOx Heater Element
ZKP-Number: 1.0700.141
Yellow alarm; warning
Cause
Corrective action
SD Smart NOx heating element
faulty; short circuit or wire
break.
u
Check sensors B88.1, B88.2, and cabling , replace if necessary.
663 – SD Smart NOx Concentration
ZKP-Number: 1.0700.143
Yellow alarm; warning
Cause
Corrective action
Smart NOx sensor (NOx
concentration) faulty; short
circuit or wire break.
u
Check sensors B88.1, B88.2, and cabling , replace if necessary.
727 – AL L1 Delta T-NT Intercooler
ZKP-Number: 2.1075.901
Yellow alarm; warning
Cause
Corrective action
T-Max. Coolant Intercooler
Exceeded L1.
1. Reduce power.
2. Check intercooler and coolant cooler.
3. Check charge-air coolant circuit.
74 | Troubleshooting | MS15033/02E 2015-02
TIM-ID: 0000047144 - 003
