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.
 

Marketplace Items

2022 FORD F-250 STV CREW CAB TRUCK (A59823)
2022 FORD F-250...
2022 John Deere 4052M MFWD Compact Utility Tractor with 400E loader - Bucket, Forks and Grapple (A55314)
2022 John Deere...
2020 GMC Sierra 1500 SLT 4x4 Crew Cab Pickup Truck (A59230)
2020 GMC Sierra...
Tandem Axle Rear Truck Frame (A59228)
Tandem Axle Rear...
2020 DRAGON ESP 150BBL ALUMINUM (A58214)
2020 DRAGON ESP...
2014 Cadillac ATS Sedan (A59231)
2014 Cadillac ATS...
 
Top