• Thank you for visiting HeavyEquipmentForums.com! Our objective is to provide industry professionals a place to gather to exchange questions, answers and ideas. We welcome you to register using the "Register" icon at the top of the page. We'd appreciate any help you can offer in spreading the word of our new site. The more members that join, the bigger resource for all to enjoy. Thank you!

Cat 289D Wiring diagram

ryan1239

Member
Joined
May 13, 2024
Messages
8
Location
Richmond, Va
I havea 2015 279d that has an advanced display issue. I do have power to the red wire on the harness going into the display. That mean the display is just bad?
 

Nige

Senior Member
Joined
Jun 22, 2011
Messages
38,510
Location
G..G..G..Granville.........!! Fetch your cloth.
I havea 2015 279d that has an advanced display issue. I do have power to the red wire on the harness going into the display. That mean the display is just bad?
IIRC there should be TWO power wires supplying the Advanced Display. One is permanent Batt+ and the other is only energized when the key is ON. Post a Serial Number, I'll have a look at the schematic.
 

Brianc383

Active Member
Joined
May 5, 2024
Messages
31
Location
Springfield Missouri
Thank you Nige. I’m trying to figure what relays are at the back of the machine. The brackets on the relays are broken off and someone has replace a wire or two back there. I think 2 of them are for the coupler up front but not sure on the other one.
 

uglyguy

Well-Known Member
Joined
Apr 9, 2010
Messages
102
Location
midwest
My display went blank about 6 months ago. I disconnecting the battery for about 5 minutes and then reconnected. Started the machine back up and the display rebooted and has been working fine ever since.
 

Dstebbins83

Member
Joined
Jan 7, 2024
Messages
8
Location
North Carolina
There are no wires labelled that way on any Cat schematic (289D or otherwise) that I've ever seen.

Apart from that this forum is generally reluctant to provide information on anything that might be considered as assisting in defeating legally-mandated emissions devices in territories that require them.
Interested in a diagram for mine it's having some can connection problems and isn't wanting to start to crank DPR00465
 
Top