4-8 BA 50Z3/6003 en – Edition 4.3 * * 5003b410.fm
Troubleshooting
8
Fuel injection pump
regulator
Loose connector Tighten the connector
Wiring harness error
Check and replace the malfunc-
tioning component
Malfunctioning regulator Contact an authorized workshop
Internal ECU error Contact an authorized workshop
Stuck regulator Contact an authorized workshop
Engine runs at overspeed
Reduce engine speed and brake
the machine
4-1
ECU Internal ECU error Contact an authorized workshop
1-6
Main relay
Loose connector Tighten the connector
Wiring harness error
Check and replace the malfunc-
tioning component
Malfunctioning main relay Replace the main relay
Internal ECU error Contact an authorized workshop
1-2
CAN connection
Battery voltage too low Charge the battery
Loose connector Tighten the connector
Wiring harness error
Check and replace the malfunc-
tioning component
Internal ECU error Contact an authorized workshop
4-2
Antitheft protection
Battery voltage too low Charge the battery
Loose connector Tighten the connector
Wiring harness error
Check and replace the malfunc-
tioning component
Internal ECU error Contact an authorized workshop