Flashi
ng
code
PID
SID
FMI
Description
Maintenance tasks
18
51
4
Throttle sensor, input volt‐
age too low.
1. Check cabling.
2. Contact Service.
18
72
4
Blower bypass position, in‐
put voltage too low.
1. Check cabling.
2. Contact Service.
18
354
4
Humidity sensor, electric
circuit defective / low (ver‐
sion 33.0 or later).
1. Check cabling.
2. Contact Service.
21
91
3
Throttle sensor, input volt‐
age too high.
1. Check cabling.
2. Contact Service.
22
91
4
Throttle sensor, input volt‐
age too low.
1. Check cabling.
2. Contact Service.
23
174
3
Fuel temperature sensor,
input voltage too high.
1. Check cabling.
2. Contact Service.
23
65
Oxygen concentration cir‐
cuit, input voltage too high.
1. Check cabling.
2. Contact Service.
24
174
4
Fuel temperature sensor,
input voltage too high.
1. Check cabling.
2. Contact Service.
24
65
4
Oxygen concentration cir‐
cuit, input voltage too low.
1. Check cabling.
2. Contact Service.
25
Reserved for “No Codes”.
No troubleshooting.
26
25
11
Aux. shutdown 1 active.
Contact Service.
26
61
11
Aux. shutdown 2 active.
Contact Service.
27
105
3
Inlet elbow temperature
sensor, input voltage too
high.
1. Check cabling.
2. Contact Service.
27
171
3
Outside temperature sen‐
sor, input voltage too high.
1. Check cabling.
2. Contact Service.
27
172
3
Air temperature sensor, in‐
put voltage too high.
1. Check cabling.
2. Contact Service.
28
105
4
Inlet elbow temperature
sensor, input voltage too
low.
1. Check cabling.
2. Contact Service.
28
171
4
Outside temperature sen‐
sor, input voltage too low.
1. Check cabling.
2. Contact Service.
28
172
4
Air temperature sensor, in‐
put voltage too low.
1. Check cabling.
2. Contact Service.
29
351
4
Circuit exhaust turbocharg‐
er inlet temperature defec‐
tive / low (version 33.0 or
later).
1. Check cabling.
2. Contact Service.
MS150049/02E 2012-11 | Troubleshooting | 55
TIM-ID: 0000003162 - 002
