Report: Water Damage to Body Control Module
Mazda CX-9 Problem
Average Mileage: 29,933 mi (28,000 mi - 32,000 mi)
Various electrical issues may develop related to the body control module (BCM). There have been reports of water damage to the BCM caused by clogged or damaged sunroof drains. It is recommend to periodically inspect the sun roof drain for debris and clean as necessary.
Visitor, 2007 Mazda CX-9, 28,000 mi
Water comes in through the windsheild and drips into the dashboard. It was poorly sealed but Mazda blames it on a car repair that was no where near the problem Now I have electical problems that they won't cover.
Visitor, 2008 Mazda CX-9, 32,000 mi
Alarm going off randomly, TCS lights, parking break light, oil light, BMS light, traction control, and interior lights with door ajar lights - all randomly going off and on while driving and/or holding still! Only happens on rainy days.
Mechanic did NOT find/fix this problem - he thought it was related to needing a new bearing (not). Fixed the bearing - still have all these problems. Now we are attacking the BCM ourselves.
Same thing. Dealership replaced in cabin air filter as though that would solve problem. Water comes in through windshield and now have an electrical problem that they will not cover under warranty. They are citing a minor accident where fog light was replaced as cause for windshield problem that has nothing to do with it. It is their way of getting out of repair.