417 – SD Level Water Fuel Prefilter
ZKP-Number: 1.8004.594
Cause
Corrective action
Water level sensor in fuel prefilter
faulty. Short circuit or wire break.
u
Check sensor and cabling, replace as necessary.
Error cleared after restarting the engine.
419 – SD T-Coolant before Engine
ZKP-Number: 18.004.604
Cause
Corrective action
Coolant inlet temperature sensor
faulty. Short circuit or wire break.
u
Check sensor and cabling (B3), replace as necessary.
420 – AL L1 Aux 1
ZKP-Number: 2.0160.921
Limit value 1
Cause
Corrective action
Input signal of Aux 1 has violated
limit value 1, depending on
configuration
u
Determine cause of limit value violation and rectify fault.
421 – AL L2 Aux 1
ZKP-Number: 2.0160.922
Limit value 2
Cause
Corrective action
Input signal of Aux 1 has violated
limit value 2, depending on
configuration
u
Determine cause of limit value violation and rectify fault.
428 – AL L1 T-Aux 1
ZKP-Number: 2.0130.921
Limit value 1
Cause
Corrective action
Temperature signal of Aux 1 has
violated limit value 1, depending
on configuration
u
Determine cause of limit value violation and rectify fault.
430 – LO P-Coolant before Engine
ZKP-Number: 20.168.921
Limit value 1
Cause
Corrective action
Coolant pressure too low
u
Check coolant circuit.
MS150093/05E 2018-12
| Troubleshooting | 173
TIM-ID: 0000008506 - 006
