Code 66-04 error, ecu no communication

   / Code 66-04 error, ecu no communication #1  

Lacmullin

Member
Joined
Feb 5, 2019
Messages
36
Location
Québec, Canada
Tractor
International
Hi,

I need your help……i try to start the motor (Doosan) and the glow plug don’t work and the starter run but no ignition of the motor. I have a error code 66-04. I check all the fuses in the two box on the driver side and everything is good.

I try to find the ECU and don’t know where it is to check the two connectors.

Can you help with the code and the location of the ECU.

Thanks

Frederic
 
   / Code 66-04 error, ecu no communication #3  
First note...the ECU and it's connections must be super clean. Use care cleaning everything before disconnecting connectors BEFORE removal. The ECU looks to be aluminum with fins for cooling and has 2 connectors.

The manual says to remove the operator seat. Remove the air cleaner housing. Clean connectors very good. Lift connector locking lever and push fully forward to remove connector. Remove retaining nuts and remove ECU. Be very careful of the little pins that plug into the connector. The connector should be pulled straight out or pushed straight in....don't bend the pins.
 
   / Code 66-04 error, ecu no communication
  • Thread Starter
#4  
First note...the ECU and it's connections must be super clean. Use care cleaning everything before disconnecting connectors BEFORE removal. The ECU looks to be aluminum with fins for cooling and has 2 connectors.

The manual says to remove the operator seat. Remove the air cleaner housing. Clean connectors very good. Lift connector locking lever and push fully forward to remove connector. Remove retaining nuts and remove ECU. Be very careful of the little pins that plug into the connector. The connector should be pulled straight out or pushed straight in....don't bend the pins.

Thanks a lot for the info.
 

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