LS 170 Glow plugs not initiating on display, won’t start

[Rockytachonite]

Went to start my machine this morning, no start even though it turns over well. I’m not getting a glow plug countdown on the display. Display also keeps going back to battery voltage showing .1 even though it’s at full charge. Any suggestions on where to start troubleshooting?

 

[Blueironman]

Hey, first off, take a peek at the glow plug relay and fuse, if the relay's busted, that countdown display won't show up. That weird voltage reading could mean there's a problem with how the ECU is chatting or maybe the display itself is acting up. Also, grab a multimeter and check the real battery voltage to make sure it's not just a bad sensor messing things up

 

[Rockytachonite]

Thank-you! Will do. Yeah the battery could be suspect, I’ve been having to charge it before starting.

 

[Barnyardblues]

It seems like you're headed in the right direction. Make sure to Check the voltage when it's working. Weak batteries can cause weird readings.