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991.1le · 09-23-2022, 08:29 AM

Has anyone run into this issue before? My car is totally bricked at the moment and I’m not sure where to go next aside from just ordering new modules and seeing what happens. This could get… expensive.

Last weekend while unloading my car off the trailer, I had no power steering and a “Service Power Steering” error. I plugged in my GM scan tool, and while using the MDI software to pull the codes, the car started freaking out. Service suspension, rear axle, stabilitrak, fuel level low, etc. Now I’m finding I can’t communicate with most of the modules in the car. HP Tuners VCM scanner and editor can’t see the car at all, and scanning with the GM tool shows no communication with the ECU and about a dozen other modules. I verified 60 ohm across pins 16 and 4 of the OBD2 connector so it seems like the CAN bus is in tact. Any clues? I’m hoping I didn’t somehow fry every single module in the car. I tried 2 different batteries that I verified good and fully charged on a tender, so it doesn’t seem to be that. The car is a 2018 SS 1LE.

09-23-2022, 08:29 AM	#1
991.1le Drives: 2018 SS 1LE Join Date: Dec 2020 Location: Chino, CA Posts: 32	Bricked My Car. Help! Has anyone run into this issue before? My car is totally bricked at the moment and I’m not sure where to go next aside from just ordering new modules and seeing what happens. This could get… expensive. Last weekend while unloading my car off the trailer, I had no power steering and a “Service Power Steering” error. I plugged in my GM scan tool, and while using the MDI software to pull the codes, the car started freaking out. Service suspension, rear axle, stabilitrak, fuel level low, etc. Now I’m finding I can’t communicate with most of the modules in the car. HP Tuners VCM scanner and editor can’t see the car at all, and scanning with the GM tool shows no communication with the ECU and about a dozen other modules. I verified 60 ohm across pins 16 and 4 of the OBD2 connector so it seems like the CAN bus is in tact. Any clues? I’m hoping I didn’t somehow fry every single module in the car. I tried 2 different batteries that I verified good and fully charged on a tender, so it doesn’t seem to be that. The car is a 2018 SS 1LE.