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Jared D
Jared D, ASE Certified Technician
Category: Chevy
Satisfied Customers: 1700
Experience:  Shop Supervisor at County Fleet
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Is there any cure 2007 suburban bcm issue?

Customer Question

Is there any cure for the 2007 suburban bcm issue?
Submitted: 1 year ago.
Category: Chevy
Expert:  Jared D replied 1 year ago.

Which BCM issue are you referring to?

Customer: replied 1 year ago.
The main bcm erratic operation including no start issue, and about a dozen other body control malfunctions..... When I disconnect neg batt cable it will reset and start again......it's completely random.... I already replaced bcm once and had new software installed.... Two weeks later more issues
Expert:  Jared D replied 1 year ago.

I had a 2006 suburban with a loose battery cable that acted like a bad BCM.

Customer: replied 1 year ago.
Cables are tight ......would a loose cable trigger multiple dtc's in different systems at once.... Srs codes, hvac controls reset , driver door buzzes, power locks won't work, liftgate inop.... Ect....
Expert:  Jared D replied 1 year ago.

It could cause multiple dtcs. The one I fixed a few years ago was loose at the power junction box. It would just barely wiggle where the positive cable entered the box. It caused bcm codes more than power train codes. Something else to check on the 07 suburban is the power box harness. I have seen corrosion form on the connector pins and trip trouble codes. Disconnect each cable from under the pcm box, clean out any dust or corrosion and then cover it with dielectric grease and plug it back in then clear codes.