Replacement Cab battery on a Fiat

[Dave1966]

Hi funsters,

I need to ask the advice of you all as I have to replace the cab (starter) battery on a 2021 Fiat based moho.

Based on previous stories of airbag ECU failure etc etc, are there any precautions I need to take - other than the usual when changing a battery on any vehicle. I'm aware that the alarm will activate (probably) and I need to put the tracker in a maintenance mode, it's just fears of ECU damage that I'm looking to guard against. The van also has a Vanbitz battery master so there will probably be a small amount of charging current when I disconnect the battery.

Thanks all.

 

[Lenny HB]

There are a few methods the one I've used is:

Wait 10 min after turning off the ignition.
Disconnect battery and replace with new battery.
Wait at least 5min, then turn on ignition for 2min, then turn off.
Leave 5 min then start engine.

 

[Dave1966]

There are a few methods the one I've used is:

Wait 10 min after turning off the ignition.
Disconnect battery and replace with new battery.
Wait at least 5min, then turn on ignition for 2min, then turn off.
Leave 5 min then start engine.

Thanks Lenny, followed your method and all OK, no fried ECUs.

Cheers,
Dave

 

[the1andonly]

Starter Battery top up or removal /replacement for X290

To avoid any problems with spiked or corrupted ECUs there are number of precautions to be taken. The SRS ECU (airbag), in particular, seems fairly prone to this and damage is often blamed on incorrect battery disconnection or jump starting...

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