I was thinking of just bridging it but decided the current rush might damage the capacitor and that wasn't worth it at this stage. I'll see if I can get a resistor tomorrow and I'll disconnect the ptc and bridge the interconnect to see if that does it. It didn't blow the resistor to bits so I was ...

We'll try anything at this stage uhi, I'll let you know how it goes, cheers

Right latest on the Ioniq, precharge resistor had blown again somewhere along the way. Measured capacitance at the Jc junction box and it was way out of range, disconnected ptc and it came a lot closer. Low resistance and ptc terminals so suspect ptc heater pulled down the precharge resistor

I just checked for HV at the terminals into the PRA. Too tricky to do meaningful testing with HV on it so I bailed, pulled fuse and dropped battery. I checked the three big fuses in the junction box and they were all good. I'll drop in a replacement PRA see how it goes and do an autopsy later

I'll pass that on uhi, we're almost there, something simple I think is preventing the start, I'll keep you posted, cheers, goodluck.

Some more pics of the Ioniq for you uhi22, the relay is good, the resistor is good. I've 380v at the input. Bms board looks ok so I'd say it's one of the + contactors, honestly don't know what to check now

For uhi22

For uhi22

For uhi22

Yes, I hope so Doig, tomorrow I will collect both board's again and check the data, strange that it just appeared again after he installed the new resistor, thanks for the reply, I'll update tomorrow, cheers.

Have another issue, the immo fault has appeared again on the doner, perhaps I should have used write protection when writing the eeprom ?

Some pics for you uhi22

Hi uhe22, as far as I know the box is separate, Hyundai were looking for €900 for the box but when he opened it, he found the resistor, he said it was quite easy to access, at first he thought he would have to drop the axle to access it but it was not necessary, I will ask him to send me some pics ...

Found the problem guys, it was the pre charge resistor blown to pieces, does anyone know where I can source one ? Cheers.

Ok guys, I got an update, when I swapped the 95640 eeprom into the doner inverter the immo faults have gone but still have these faults that were on the original inverter, at this stage, I'm lost

hopefully it works, i'll report back with results, seems to good to be true though,

i found an eeprom 95640 with the vin number inside, i took a chance and swapped the eeproms

hi all, i need some help, i'm not used to working with E.V's but a friend asked me for some help, he bought a 2018 ioniq with a bad motor, it blew the capacitor in the inverter and apparantly the whole board is fried, he bought a replacement but when installed immo error comes up, he's asked me if ...