09-23-2022, 08:29 AM | #1 |
Drives: 2018 SS 1LE Join Date: Dec 2020
Location: Chino, CA
Posts: 32
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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. |
09-23-2022, 10:19 AM | #2 |
Who Needs to KNOW?
Drives: 18 ZLE Join Date: May 2018
Location: Left Side of the Moon
Posts: 1,771
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Sure it's not just dead or near dead battery ?
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09-23-2022, 12:25 PM | #3 |
Drives: 2017 2SS, 50th pkg, M6, MRC, NPP Join Date: Jan 2016
Location: Ocean City, NJ
Posts: 3,191
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A couple of links which may help. There is a note about one of the sensors shorting to ground and causing all the other modules which rely on a 5V reference to go "off-line."
https://www.underhoodservice.com/ecm...cation-issues/ https://rustyautos.com/obd-wont-connect-to-ecu/ |
09-23-2022, 03:31 PM | #4 | |
Drives: 2018 SS 1LE Join Date: Dec 2020
Location: Chino, CA
Posts: 32
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Yeah tried a couple different know good batteries with the same result.
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