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431 – SS P-Coolant before Engine
ZKP-Number: 20.168.922
Limit value 2
Cause
Corrective action
Coolant pressure too low
u
Check coolant circuit.
434 – HI T-Coolant before Engine
ZKP-Number: 20.173.931
Limit value 1
Cause
Corrective action
Coolant temperature too high
u
Check coolant circuit.
435 – SS T-Coolant before Engine
ZKP-Number: 20.173.932
Limit value 2
Cause
Corrective action
Coolant temperature too high
u
Check coolant circuit.
440 – AL L1 P-Aux 1
ZKP-Number: 2.0110.921
Limit value 1
Cause
Corrective action
Pressure signal of Aux 1 has
violated limit value 1, depending
on configuration
u
Determine cause of limit value violation and rectify fault.
442 – AL L2 P-Aux 1
ZKP-Number: 2.0110.931
Limit value 2
Cause
Corrective action
Pressure signal of Aux 1 has
violated limit value 2, depending
on configuration
u
Determine cause of limit value violation and rectify fault.
444 – SD U-PDU
ZKP-Number: 1.8004.578
Cause
Corrective action
Injector power stage sensor
faulty. Internal fault in ECU
u
Replace Engine Control Unit.
174 | Troubleshooting | MS150093/05E 2018-12
TIM-ID: 0000008506 - 006