4-6 BA 50Z3/6003 en – Edition 4.3 * * 5003b410.fm
Troubleshooting
Engine diagnosis codes
Flash code
Component Troubleshooting
7
Fuel injection pump
regulator sensor
Loose connector Tighten the connector
Wiring error
Check and replace the malfunc-
tioning component
Malfunctioning sensor Contact an authorized workshop
5
Throttle
Wiring error
Check and replace the malfunc-
tioning component
Malfunctioning throttle lever sensor Replace the throttle lever sensor
4-1
ECU temperature sen-
sor
Internal ECU error
ECU temperature too high
Allow to cool down and contact an
authorized workshop
2-5
ECU temperature ECU temperature too high Allow to cool down
4
Coolant temperature
sensor
Wiring harness error
Check and replace the malfunc-
tioning component
Malfunctioning coolant temperature sensor Replace the sensor
3-6
Coolant temperature
too high
Overheated engine Let the engine cool down
Not enough coolant Add coolant
Malfunctioning engine cooling system
Check the engine cooling system
and replace the malfunctioning
component if necessary
Malfunctioning coolant temperature sensor Replace the sensor
2-4
5 V sensor
Wiring harness error
Check and replace the malfunc-
tioning component
Internal ECU error Contact an authorized workshop
2-3
Battery voltage
Worn battery Replace the battery
Oxidized battery terminals Clean the battery terminals
Malfunctioning alternator Replace the alternator
Wiring harness error
Check and replace the malfunc-
tioning component
6
Speed sensor
Loose connector Tighten the connector
Malfunctioning starter Replace the starter
Malfunctioning fuel injection Contact an authorized workshop
Battery voltage too low Charge the battery
Wiring harness error
Check and replace the malfunc-
tioning component
1-1
Spare speed sensor
(alternator)
Loose connector Tighten the connector
Malfunctioning wiring harness
Check and replace the malfunc-
tioning component
Internal ECU error Contact an authorized workshop
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