can bus malfunction
March 27th, 2021, 10:07 AM
#1
can bus malfunction
Hello All,
After 2003 Suburban sat all winter, now, I have airbag light on dash. Have checked front sensors. Truck runs fine but something will not allow the class 2 bus to communicate with aurbag module. Have taken lose the SP205 / splice pack and jumped individual modules. Still not sure what is wrong.
BUT,,, By accident, if i check battery voltage at battery terminals,,voltmeter slowly counts up from about .25v to the battery voltage. Have disconnected alternator,,with same results.
Can't imagine how truck starts and runs fine when checking battery voltage at .25v. Have tried two diffierent DVOM's.
Anyone , any ideas?
Thanks
After 2003 Suburban sat all winter, now, I have airbag light on dash. Have checked front sensors. Truck runs fine but something will not allow the class 2 bus to communicate with aurbag module. Have taken lose the SP205 / splice pack and jumped individual modules. Still not sure what is wrong.
BUT,,, By accident, if i check battery voltage at battery terminals,,voltmeter slowly counts up from about .25v to the battery voltage. Have disconnected alternator,,with same results.
Can't imagine how truck starts and runs fine when checking battery voltage at .25v. Have tried two diffierent DVOM's.
Anyone , any ideas?
Thanks
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Dopeoperator
Silverado & Fullsize Pick-ups
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February 5th, 2011 11:47 PM