09’ KW T800 CECU

[Running rough]

(10-15-2024 )mxmom777 Wrote:  Looking for info regarding my CECU on 09’ T800 ISX cm871. What would cause boost pressure to intermittently popup on display? Is there any shop manuals, diagnostic programs suggested to access the cab/chassis OEM side of this truck?
CECU - Q21-1076-2-100.

If you have the paccar esa cab somewhere, i believe you can go to help to top right hand corner and look up wiring and manuals there