194002441 - 4110DC MPU CHECK (Motor Pump Unit)

STEPCHECK TO BE PERFORMEDRESOLUTION IF THE CHECK IS NOT OK
1Check power supply (+15)

  • Connect using the Examiner in Voltmeter mode with the positive probe at pin 1 and the negative probe of the 5-way connector for the connector plate for the MPU earthed:
  • Turn the key to the on position and read the battery voltage of around 12 volt
Check the continuity of the 10 A fuse F51 in the dashboard junction unit and if broken replace it checking out the cause.Check the continuity of the wiring between the fuse and the MPU
2Check earth connectionCheck the continuity of the connection between pin 2 of the two-way supply connector for the MPU connector plate and the earthRestore the continuity of the earth connection
3Check power supply (+30)Connect using the Examiner in Voltmeter mode with the positive probe at pin 1 and the negative probe of the two-way connector for the connector plate for the MPU earthed.Check the continuity of the 80 A fuse F73 in the battery junction unit and if broken replace it checking out the cause.