6.2 Troubleshooting
Engine does not rotate when starter is actuated.
Cause
Corrective action
Battery discharged or faulty.
u
Charge or replace (see special documentation).
Battery: Cable connections faulty.
u
Check if cable connections for secure seating (see special
documentation).
Starter: Incorrect design of power
supply (battery/cable)
u
Check starter power supply and correct the design if necessary
(battery/cable resistance).
Engine cabling faulty.
u
Assemblies or connectors on LOP
loose.
u
Inspect visually.
Plug connections on Engine
Control Unit loose.
u
Check plug connections (→ Page 249).
Plug connections on Engine
Interface Module (EIM) loose.
u
Check plug connections (→ Page 251).
Fuse F1 (→ Page 54) in engine
wiring harness faulty (fuse lamp
on EIM flashes with relevant
flashing code).
u
Check fuse, replace as necessary, and re-start system by actuating
key switch.
Engine blocked (crankshaft
cannot be rotated by hand).
1. Check start interlock (→ Page 248).
2. Contact Service.
Engine rotates when started but does not fire.
Cause
Corrective action
Poor turning on starter: Battery
discharged or faulty.
u
Charge or replace battery (see special documentation).
Engine cabling faulty.
u
Engine Control Unit faulty.
1. Replace (→ Page 252).
2. Contact Service.
Starter: Incorrect design of power
supply (battery/cable)
u
Check starter power supply and correct the design if necessary
(battery/cable resistance).
Engine fires unevenly.
Cause
Corrective action
Engine cabling faulty.
u
Injector defective.
u
Engine Control Unit faulty.
1. Replace (→ Page 252).
2. Contact Service.
128 | Troubleshooting | MS150045/03E 2018-08
TIM-ID: 0000044073 - 004
Summary of Contents for 12V4000M73 series
Page 1: ...Operating Instructions Diesel engine 12V4000M73x 16V4000M73x MS150045 03E...
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