07-23-2023, 08:45 AM | #29 | |
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Obvious ECM Failure with lockout
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Best Wishes C.J |
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07-24-2023, 02:57 PM | #30 | |
Drives: 2014 camaro ss 1le Join Date: Jul 2021
Location: boston ma
Posts: 14
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and had a friend program the BCM to match all the data off the old one so I didn't have to bring it to a dealer Previously we had 0 communication between any modules; now we have intermittent communication initial diag was that one of the modules was malfunctioning and causing the comm signal to get intercepted/grounded. By jumping/bypassing steering angle sensor we were able to get comm back up. so a new sensor was ordered. Then comms went away again While waiting for new ECM to come in, a new set of com lines was run from the connection on the firewall to the BCM and that renewed all communications. So basically, a massive shit storm of things happened to go wrong all at once. For anyone who is having a similar issue: check wiring harness, but if there is no clear issue with it then BCM is most likely the issue. Seems like these BCMs just shit the bed occasionally. |
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07-24-2023, 03:32 PM | #31 | |
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Shit Storm
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07-24-2023, 03:59 PM | #32 | |
Drives: 2014 camaro ss 1le Join Date: Jul 2021
Location: boston ma
Posts: 14
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But programming is not as issue for me. My new BCM was properly programmed and functions exactly the same as the old one. For most people they will not have access to programming unless you go through a dealership. A bad BCM 100% can keep the car from starting. My car is running with new BCM and the new BCM did restore communications I just also happened to have an additional problems on top of the BCM. The ECM was not replaced and is functioning properly now that everything else is corrected. |
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07-24-2023, 04:40 PM | #33 | |
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Shit storm
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12-13-2023, 12:04 PM | #34 |
Drives: 2012 Camaro LT2 LFX Join Date: Mar 2023
Location: Texas
Posts: 3
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Man I’m having it been having the same issue. I’m gonna check grounds to ecm or my car has been popping up some certain communication code and I’m about to try to figure it out
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