cmaxmd

Posting to both cmax/fusion forum b/c i think the same would work. I have now seen the flashing ring of death on 2 cmax energi's. At least one had an obd code/check engine light with code C0564 (the other wasn't checked). Both *would* charge if connected to either 120v or 240v chargers. One actually wouldn't "start" (saying it was really plugged in, didn't ask if its plugged in); workaround was to plug in 120v charger (without plugging 120v charger into wall as wall wasn't available). Remove charger and it would ask if it was plugged in, and would start. Both self resolved after doing the following steps: * Plug in HV charger (either 120v or 240v; one car was done with 120v the other was 240v). ** Blink of death kept happening even after HV was fully charged! * Charge 12v battery until full. * Pull fuse to reset MFM (fuse 67 on cmax). One car this was necessary because MFM stopped working. On the other I did it as ritual. ** Once both batteries were charged the blink of death stopped, and didn't come back. Of course if you can get dealer to fix it great, but we were given appointments days out. Note: attempting to charge 12v battery first doesn't help, becuase blink of death consumes more amps than my 6A 12V charger produces. Must charge HV and leave plugged in (to stop blink of death) and charge 12V after or at same time as HV. Will check if my friends car still scans the code when I get a chance (this is the one that happened this week and was charged with just 120v). Mine was charged with 240v. Root cause for mine might have been mechanically damaged airport charger. Root cause for friends isn't known.

I have the cmax energi but believe the systems to be the same. If you don't care about cabin temp (use seat heaters), the engine will NOT start as long as you leave the climate control "off". This has been true down to at least 20F. Thus you can use your EV range on short trips without starting the ICE (assuming you use EV now or are gentle on gas pendal). Once its below about 40, if you start the climate, the engine starts right away. If you remote start it in the garage, it can start the ICE, risking CO poisoning if door is closed. If you want to remote start in garage with door shut, wait for the myfordmobile app. Personally I don't like a car running ICE in the garage even with the door open. Once the app is present concern is that the 5kw heater will drain the ev battery even if the car is plugged in (1450w from 120v or 3.3kw from 240v) but at least engine won't start. 5kw heater heats the water, not the air, so there is a delay before heat comes out.