Is it normal to get 24V on pin 7 of the X724 connector on a Liebherr driver display unit?

[Lily Anderson]

I'm troubleshooting a strange issue with the driver display unit on my Liebherr machine and I'm trying to avoid replacing the display before knowing for sure it's bad. Right now the problem seems to happen whenever I connect X724 pin 7. As soon as it's connected, the display starts acting up, and I'm measuring around 24V there. Would appreciate any advice from someone familiar with Liebherr electrical systems.

 

[Big_Iron]

Hey Lily, 24V there might be normal depending on what pin 7 is feeding, but if the display glitches as soon as it’s connected, it could also point to a short or bad ground somewhere. I’ve seen similar issues before where a damaged wire behind the dash caused the whole display to act weird.

 

[Drew anderson]

I'd probably check the grounds and connector pins really closely before condemning the displaysometimes a poor connection or wiring issue can make these systems act a lot stranger than you'd expect.