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kpro v3 34-2 need professional help "vbu high voltage" code with pics

3K views 5 replies 2 participants last post by  ROCKNROLLA562 
#1 ·
Any and all help is appreciated 🙌🏻

Problem: I keep getting code 34-2 "vbu high voltage" code on kprov3

Car: 97 civic ex with a k24a2 and 5speed swapped, the car has a ry-wire engine harness and conversion harness installed (pics attached), k pro v3 on a PNF-A03 ecu

Items newly replaced: starter, alternator, main relay (checked 3 from pick part), I added extra grounds so I have about 6 now

At this point Im lost 🤷🏻‍♂️, I'm starting to think its my ecu or kpro? because the engine harness and conversion harness should be pnp, I don't know what else it could be? Thank you for any help!

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Electrical wiring Computer hardware Electrical supply Cable Gadget
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#5 ·
You're assuming the harness isn't at fault but that something else is. Why should the harness be less likely the fault than any other parts in the system? I would trust the Honda parts to be more reliable and mistake free than the rywire harness.
 
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