Control Module Software Update CSN Y40

[swflfireguy]

I came here to see what. if any, change is noticed. There seems to be none. And as stated above it's emissions related. I think I'll pass on this one for now. FWIW I have 107K miles and no issues so far.

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[AZ Hella]

I am having this software update done tomorrow. I have a 2019 2.0 e-torque. It is for the PCM and PIM. Has anyone had this done? I only have one 12v battery. After I replaced it my stop/start stopped working. I get the message stop/start not available battery charging. 12v battery shows 14.1 v. This has been going on for around a year. Hoping this update might help this.

14.1V resting (engine off) or 14.1V while running? If it's running then your alternator is throwing lots of charge at it. I would guess the resting voltage is probably in th low twelves. The aux batteries are known for taking out the main battery. Just happened to me and I went ahead and bypassed the aux. Now I'm trying to save the main with my Noco10 battery charger.

 

[kah.mun.rah]

Anyone know if I have to unmarry my Tazer to have this update done?

 

[Rogersocal]

Yes, Anytime you have an update to ECU/PCM you should unmarry the Tazer.

 

[kah.mun.rah]

Yes, Anytime you have an update to ECU/PCM you should unmarry the Tazer.

I am using my Tazer to calibrate my new differential re-gear. Any harm in driving on 4.88s when the Tazer is unmarried and the Jeep thinks it has 4.10s?

 

[Rogersocal]

Hard to say, I hear it can go into limp mode but i don't know for certain. Funny you bring this up, im getting a regear on the 18th and they told me to setup the gear ratio before going home so that it wouldn't go into limp mode.

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