siberian

On and off, same with ConBox. During Campaign TSB2229 something went wrong past step 6 (of 11) and it wiped ConBox out. After 4 hours yesterday, and disconnected the battery overnight, back to it in a few minutes. More later, thanks

siberian

JB911

I know you've had difficulties where you live-have you considered sending the car to a different Porsche dealer for warranty covered service? I'm sure it would involve headaches, but perhaps contacting PCNA might be helpful. Polite pressure within your consumer rights, which I believe vary from State to State, but examine all options-

Ghostbuster

Maybe pull the front and rear BCMs Off, that eliminates a lot of functions just in those 2 modules, maybe even the DME, the ones that You have quick access to., untill U have steady communications to the Gateway ...then start going back one at a time...

siberian

Only one dealer in entire State

siberian

siberian

BCM are awake as is DME IIRC. Just can't ignition power.

siberian

Ghostbuster

So U can't power on anything with the key ON ? Or Only e few modules, any that You can tell ? I take it the Cluster is dead...
What model is this 911 ???

siberian

PCM is on, ignition key is on, PCM is on but BT doesn't connect to phone, spoiler is up, but when connected to PIWIS it receives no ignition signal on auto detect. Ergo very limited possibilities

siberian

Ghostbuster

I was looking at some diagrams [CAN Topology] just picked a 2021 911, or is it a different model ? Looks like CAN MMI is on...

siberian

2021 C4S, thanx

siberian

Ghostbuster

Sounds like on your own car, not customers....I poke around some....Do U have access To any wiring Diagrams ? I figure Yes, but ....
ConBOX Low I take it if it's pre June 2021 Production...

siberian

Not sure I understand "on your car, not customers..."

siberian

Ghostbuster

I was thinking this happened on your own car, [ not customers] but it's not important.
Did U try to restart the Campaign ? I figure yes, and No go. Charge up both batteries for a while with the key ON, so the ConBox battery charges s well.

I play with this subject for a while. [ Interesting...]

siberian

No my own car. Tried to restart Campaign but at some point it asks you to turn on the ignition... How do you check the ConBox battery? Where is it? LiFePO4 is fine, PowerMax on at 14.3v during tries.

Issue is ConBox come and vanishes and doesn't keep label (PORSCHE) as unable to write. Just need to be able to get some power... looking at bridging at the fuse box...

Thanks

siberian

Ghostbuster

I included this *.pdf Latest one on this subject, Page 3 Procedure 1. ............ -> maybe the reason the programming went south. [Emphasize maybe]
Don't know where the 3.5V battery is [Yet], didn't have to pursue it's location yet, generally one sees the Voltage level of it on the Scanner, but if You can't turn things On, the scanner will not read either...
But in any event with the key turned on, keep the maintainer on, can't go wrong, may or may not charge the small battery.
Can that power max charge your main Lithium Battery OK / [I never tried that] We use a different Charger for Lithium batteries. [ Real McCoy -> [url]https://associatedequip.com/producttype/intellamatic-battery-chargers ] ESS6100

I get back to You when I turn anything up on this deal.
Included the Starter Circuit, may be of some help.

siberian

Thanks. ConBox battery only charges when ignition is on.

POWERMAX 100A charges fine, voltage and amps controlled as well as visible on PIWIS. Some discrepancy between what PMax displays and PIWIS registers, but still nominal A/V. Normally it's on a CTEK charger, battery voltage was 13.3v.

Left battery neg terminal disconnected over night to let modules drain. No change

I'll have a look at the pdf. Thank you

siberian