High Voltage Battery Charge Too Low - Vehicle Cannot Start

[Jazzik]

Did you buy the car from a Honda dealer or from a private person?
Have you been informed by the seller that the car has undergone an engine change and the car has no warranty?
Was the engine change carried out by a Honda dealer?

[Marco1979]

An engine swap for a car this young and no warranty? If this would have happened to me I would bring the car back to where I bought it and would want my money back! Or demand that they solve the problem.
Good luck; you might need some legal advice!

[Marco1979]

I also remember that - because of the high currents - extra care should be taken when connecting HV components. Maybe, when swapping the engine, a connector makes a faulty connection causing a higher resistance? That would explain the instant drop in voltage and bars.
Disconnecting, thorough cleaning and reconnecting might help.

[Kremmen]

I'd be getting professional help

[Jazzik]

An engine swap for a car this young and no warranty? If this would have happened to me I would bring the car back to where I bought it and would want my money back! Or demand that they solve the problem.
Good luck; you might need some legal advice!

I'm afraid that after this you really have a problem as for warranty:

So back to the car:
So once I got the car back I have got a replacement HV battery and changed it over (DISCLAIMER: I am not telling anyone to do this without training and know how. SAFTEY FIRST)

[Whiteshark]

I think I kinda guessed  something wasn’t quite right about this from the very start. Hondas are generally bullet proof.

[alchemistjazz]

I connected the Honda HDS diagnostics and it gave the same error: P06af.

In the diagnostics when I try and go to the IMA/Powertrain section it says "No communication with IMA".
Any clues what I should check? Which Fuses and Plugs?


I was not able to get the petrol engine started by holding down the gas pedal for 15 seconds.

[Lincolnshire Rambler]

I would expect any issues with the original engine and HV caused by a defect to be covered by the three year warranty. Of course if you run the car with a low oil warning and damage the engine then it’s your fault for not taking notice . Other than physical damage to the HV battery by the owner I don’t see them needing replacing . Anyone who obtains a HV battery and replaced it themselves would be expected to have a good understanding of the cars software and associated diagnostics. You tube has lots of good videos of experts fault finding EVs and hybrids ( mainly VW Audi ). These individuals are not main dealers but trade experts in the controlling computer tech . You can’t simply unbolt a HV battery and plug in a  replacement one and expect it to work

[Jazzik]

You can’t simply unbolt a HV battery and plug in a  replacement one and expect it to work

Not...? Not even when you own an alchemistjazz?

I really wonder what the history of this Jazz is and whether topic starter was aware of it when he bought it..?
Hence my (unanswered) questions from October 27, 2023, 11:48:15 PM

[Lincolnshire Rambler]

Magic wands and spells may help…to add to the alchemist way of doing things of course

[alchemistjazz]

Did you buy the car from a Honda dealer or from a private person?
Have you been informed by the seller that the car has undergone an engine change and the car has no warranty?
Was the engine change carried out by a Honda dealer?

I got it via a auction was supposed to be a company car, was not aware it had a engine change before I bought it. The dealership said the engine change was done outside of the network.

[Jazzik]

So basically you've been cheated...

[Kremmen]

I agree

An engine change on such a new car seems very odd and with the HV problems, more going on here

Bought a lemon

[alchemistjazz]

So basically you've been cheated...

I agree

An engine change on such a new car seems very odd and with the HV problems, more going on here

Bought a lemon

Yes you both are right.

Do you know which fuse would be related to the IMA, if I can communicate with that it might give me a bit more of an idea.

[guest334]

Did you check the cars history for write off insurance issues eg vehicle check etc?