P0689 P1682 Cranks, Won't Start - Electrical Diagnostic Tips

Customer states sometimes van will crank and not start. Found diagnostic trouble codes P0689 and P1682 stored.
Diagnostics leads to under hood fuse block assembly replacement due to internal voltage drop.
Chevy Chevrolet Express GMC Savanna
#mechanic #cars #tipsandtricks #professional

[@DEMZ24]

Just had this same issues. Got the new under hood fuse box and fix the issue. Thanks for the help

[@DadsGarageDiagnosticSpecialist]

I’m glad you found it helpful. Thanks.

[@rustedhorsepower5132]

Gotta love those printed circuit board fuseblocks, among the worst design ever. Good breakdown, good video!

[@DadsGarageDiagnosticSpecialist]

Thank you very much! Yes unfortunately it is a costly and wasteful design.

[@autobizrepairs6487]

Amen to that. . identifix has a direct hit report on that issue and yours agree with theirs. I currently have this issue and my main problem was i could not separte the fuse box to properly check it out as we could with older models. So I am going to find a known good used fuse block and try it. Thanks for your viveo big guy. Be blessed.

[@DadsGarageDiagnosticSpecialist]

That is interesting. I will have to check it out. Thank you for sharing!

[@0newheeldrives]

Thank you so much! Fixed this exact issue on my short bus!

[@DadsGarageDiagnosticSpecialist]

That’s awesome! Thanks!

[@dallasshotwell1274]

Great video

[@DadsGarageDiagnosticSpecialist]

Thanks!

[@dallasshotwell1274]

@@DadsGarageDiagnosticSpecialist your welcome

[@RogueEntertainment]

Where did you find the diagram?

[@DadsGarageDiagnosticSpecialist]

Got it from GM service information. Thanks.

[@joels7605]

How much was that module?

[@DadsGarageDiagnosticSpecialist]

It was about $300 or less if I remember correctly. Thanks.