431 – SS P-Coolant before Engine
ZKP-Number:
Red alarm. Engine shutdown.
Associated parameter 2.0168.922
Cause
Corrective action
Coolant pressure before engine
too low (limit value 2). Volumetric
flow too low, static pressure too
low.
u
Check engine coolant circuit (pressure and volumetric flow).
434 – HI T-Coolant before Engine
ZKP-Number:
Yellow alarm.
Associated parameter 2.0173.931
Cause
Corrective action
Coolant temperature before
engine too high (limit value 1).
Engine coolant pump failure,
volumetric flow too low, air in
engine coolant circuit.
u
Check engine coolant circuit (pressure and volumetric flow).
435 – SS T-Coolant before Engine
ZKP-Number:
Red alarm. Engine shutdown.
Associated parameter 2.0173.932
Cause
Corrective action
Coolant temperature before
engine too high (limit value 2).
Engine coolant pump failure,
volumetric flow too low, air in
engine coolant circuit.
u
Check engine coolant circuit (pressure and volumetric flow).
443 – HI P-Charge Mix Diff.
ZKP-Number:
Yellow alarm.
Associated parameter 2.0183.931
Cause
Corrective action
Difference in mixture pressures
sensed on A and B side is too high
(limit value 1).
1. Check throttles for varying positions and malfunction.
2. Check mixture lines for leakage.
3. Check sensors and cabling (B79.22, B79.21).
MS150034/04E 2016-11
| Troubleshooting | 129
TIM-ID: 0000017544 - 001