Old Dec 3, 2024 | 08:03 PM
  #37 (permalink)  
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srt6exy
Joined: Feb 2018
Posts: 27
Likes: 2
From: missouri
Default Re: Need Help, RCM, SLA, TCU? Where to start?

Well I got a little bit of time tonight. I checked the transmission fluid and it totally covers the check portion of the dipstick, not sure if thats something that is usually checked running or at a warmer temp? Either way, I dont think its low at least. I also got measurements for all the CAN BUS connections between the SLA table for that is attached no issues there. I started checking voltages with some of the modules unplugged and the fans started running which startled me so I stopped, not sure if theres a specific way to go about checking voltages at each module or not. I then plugged everything in and went to check OBDII codes and had no stored codes but several DTCs for low voltage at the TCM so I checked the battery and it was down to 11.4 volts so I have it on a charger and will try again later. However, while I was checking DTCs I tried to connect to the SLA and it said there was no communication with the SLA.

So, thats all the info I have for right now.

 
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