7.2 Troubleshooting
Engine does not turn when starter is actuated
Cause Corrective action
Battery low or faulty u Charge or replace (see manufacturer's documentation).
Battery: Cable connections faulty u Check if cable connections are properly secured (see
manufacturer's documentation).
Engine cabling or starter faulty u Check firm seating of cable connections, contact Service.
Engine cabling defective u Check (→ Page 131).
Loose plug connections on Engine
Control Unit
u Check plug connections (→ Page 134).
Loose plug connections on Engine
Interface Module (EIM)
u Check plug connections (→ Page 136).
Fuse F1 in engine wiring harness
defective (fuse lamp on EIM
flashes with relevant flashing
code)
u Check fuse (replace if required) and re-start the system by
actuating the key switch.
Running gear blocked (engine
cannot be barred manually)
u Contact Service.
Engine turns on starting but does not fire
Cause Corrective action
Poor rotation by starter: Battery
low or faulty
u Charge or replace battery (see manufacturer's documentation).
Engine cabling defective u Check (→ Page 131).
Air in fuel system u Vent fuel system (→ Page 87).
Engine Control Unit defective u Contact Service.
Engine fires unevenly
Cause Corrective action
Injector defective u Replace (→ Page 84).
Engine cabling defective u Check (→ Page 131).
Air in fuel system u Vent fuel system (→ Page 87).
Engine Control Unit defective u Contact Service.
Engine does not reach nominal speed
Cause Corrective action
Fuel prefilter clogged u Replace (→ Page 96).
Easy-change fuel filter clogged u Replace (→ Page 88).
Air supply: Air filter clogged u Check signal ring position of service indicator (→ Page 101).
Fuel injection: Injector defective u Replace (→ Page 84).
Engine cabling defective u Check (→ Page 131).
Engine: Overload u Contact Service.
MS150060/04E 2016-02 | Troubleshooting | 61
TIM-ID: 0000044001 - 002
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