Detection conditions:The conditions:The starter motor has been activated the max. allowed time or has reached the max. allowed temperature. Symptom:
Possible causes:
The starter motor is deactivated
Long time cranking Software, properties functions
and
Action
3021 MID 128 SID 39 Engine starter motor relay
Fault mode FMI 3
Detection conditions:The conditions:The engine control unit (E-ECU) registers: that the current is above 3.9 A(EB29) Symptom:
Possible causes:
The starter motor can not be activated
Short circuit to higher voltage Defective starter relay
Action
3021 MID 128 SID 39 Engine starter motor relay
Fault mode FMI 4
Detection conditions:The conditions:The engine control unit (E-ECU) registers: that the voltage is below 0.33xUbat(EB29) Symptom:
Possible causes:
The starter has no power The starter motor can not be activated
Short circuit to lower voltage Defective starter relay Defective battery, battery cables
Action
3021 MID 128 SID 39 Engine starter motor relay
Fault mode FMI 5
Detection conditions:The conditions:The engine control unit (E-ECU) registers: that the voltage is above 0.33xUbat and below 0.66xUbat (EB29) Symptom:
The starter has no power The starter motor can not be activated
Possible causes:
Open circuit Signal line short-circuited frame ground Defective starter relay
to
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Defective battery, battery cables
Action
3021 MID 128 SID 39 Engine starter motor relay
Fault mode FMI 10
Detection conditions:The conditions:The starter motor has been activated for 3s but the engine is still not revolving at all. Symptom:
Action
The starter motor is deactivated
Possible causes:
Mechanical fault
Check the mechanical parts of the starter for damages and abrasions. Guided Diagnostics
