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Re: Peugeot ION multiple problems

Posted: Sat Nov 17, 2018 8:37 am
by kiev
i looked at your printout file, and it seems that a power supply voltage is only showing 1.40 volts. i would expect to see 12V, since all the ECUs have a power supply feed from the Aux battery.

What did you ever find out about the 20A fuse in the MCU?

Re: Peugeot ION multiple problems

Posted: Sun Dec 02, 2018 2:59 am
by gera4ko
Hi,
the 20A fuse is OK.
Thats not the problem.

Please heeeeeellllppppp!

Re: Peugeot ION multiple problems

Posted: Sun Dec 02, 2018 8:28 am
by kiev
It's not clear but does the car run and drive as normal? Does the 12V aux battery stay charged up or does it get drained while driving?

In your printout, The EV-ECU voltage is only showing 1.4 Volts. It should be at least 12 Volts. That is a problem. It tells me that some relay is not being commanded to provide power.

Also in the printout it shows that the AC relay is not activated, so the EV-ECU has not turned on the relay inside the On-Board Chargger. But of course you know that because it is not working. But the EV-ECU must be powered and working before it can control the OBC.

Maybe the issue is in your EVSE unit not communicating with the car properly, or the internal relays of the EVSE are damaged and not providing AC to the car? Can you borrow one to make a test, or try your EVSE in some other vehicle to prove it is good?

It seems that both functions of the charger/converter box are not working. One common element is the 20A fuse in the MCU, but you have checked it and say it is good. So There are also 20A fuses inside the OBC, both on the topside (charger) and the bottom (DC converter). You May need to remove the covers and inspect those fuses and for damaged components, take photos, etc. Have you seen the pictures from the Troubleshooting thread of the various components which have been found to be damaged?

Do you still have your original OBC? Take a look inside that one for damage. Whatever blew the first one may have done the same to the second one.

There may be damage in the DC converter section (bottom cover of the OBC) which is causing the 12V to be pulled down low after the 2-3 seconds when the OBC is being energized. It seems odd that both OBC units would be doing the same thing, but maybe the second unit was failed also.