BCM trouble
Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=140676
Printed Date: May 05, 2024 at 9:26 PM
Topic: BCM trouble
Posted By: prdjr165
Subject: BCM trouble
Date Posted: January 17, 2016 at 11:42 AM
does unplugging a connecter at the BCM with the battery connected cause damage?
Replies:
Posted By: howie ll
Date Posted: January 17, 2016 at 1:25 PM
Not lasting and usually only when the ignition is on.
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Amateurs assume, don't test and have problems; pros test first. I am not a free install service.
Read the installation manual, do a search here or online for your vehicle wiring before posting.
Posted By: prdjr165
Date Posted: January 17, 2016 at 2:32 PM
installed a omega ol-rs-ch7 in a 2013 ram1500 and now it wont start with key or remote start-service air bag system light is on also-when i connect my scanner it wont connect to trucks ecm to get codes.simple install-
plug in to ignition switch
connect high and low can wires at OBDII
connect RAP shutdown wire to purple wire at BCM
conect p-light wire at light switch
i don't know what went wrong...tried disconnecting battery already.
Posted By: sparkie
Date Posted: January 17, 2016 at 4:07 PM
Check every fuse in the vehicle with a digital volt meter. Unplugging the BCM with the ignition ON is never good. It is possible you have blown a fuse in the process as circuits will try and pull power through other circuits when this happens. It is also possible you have damaged the BCM.
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sparky
Posted By: davep.
Date Posted: January 17, 2016 at 5:41 PM
I might try disconnecting the CanBuss wires. Maybe something is corrupting the data and that's why it won't start or communicate with the scanner.
Posted By: prdjr165
Date Posted: January 17, 2016 at 7:23 PM
found a blown fuse-truck starts but give me a code for ambient temperature sensor.gauge is reading -40 degrees and both front door locks and power windows dont work from master switch(rear windows work from master switch)..fuse for driver door module is good.temp sensor is in driver door mirror so this sounds like the BCM isnt getting any signals from the drivers door module.
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