
418 – SD T-Intake Air B
Yellow alarm.
Associated parameter 1.8004.603
Cause
Corrective action
Intake air temperature sensor
faulty, short circuit or wire break.
u
Check sensor and cabling (B49.2), replace as necessary
(→ Page 203) (→ Page 202).
419 – SD T-Coolant b.Engine
Red alarm.
Associated parameter 1.8004.604
Cause
Corrective action
Coolant temperature sensor at
engine inlet faulty, short circuit or
wire break.
u
Check sensor and cabling (B6.3), replace as necessary
(→ Page 203) (→ Page 202).
423 – LO P-Coolant Diff.
Red alarm. Engine shutdown.
Associated parameter 2.0180.921
Cause
Corrective action
Coolant differential pressure too
low (limit value 1). Insufficient
volume flow.
u
Check engine coolant circuit (pressure and flow).
429 – HI P-Coolant
Red alarm. Engine shutdown.
Associated parameter 2.0101.931
Cause
Corrective action
Coolant pressure after engine too
high (limit value 3).
u
Check engine coolant circuit (pressure and flow).
430 – LO P-Coolant Before Engine
Yellow alarm.
Associated parameter 2.0168.921
Cause
Corrective action
Coolant pressure before engine
too low (limit value 1). Insufficient
volume flow, static pressure too
low.
u
Check engine coolant circuit (pressure and flow).
MS150104/03E 2017-09
| Troubleshooting | 137
TIM-ID: 0000038612 - 003