2011 Cadillac DTS, Battery Goes Dead Overnight

This 2011 Cadillac DTS came in with the complaint that the battery will go dead if the car sits for more than 12 hours. I traced the drain to the Driver’s Door Module fuse (DDM)  in the rear underseat fuse block.  I used an amp meter connected in series between the battery negative terminal and … Continue reading “2011 Cadillac DTS, Battery Goes Dead Overnight”

2008 GMC Sierra Denali, Multiple Electrical Problems

This 2008 GMC Sierra Denali came in with multiple electrical complaints. The blower did not work. The left side stoplight, all left side turn signals, the right side mirror turn indicator. All of the power windows except for the right rear window did not work. There were a multitude of codes scattered through various modules. … Continue reading “2008 GMC Sierra Denali, Multiple Electrical Problems”

2006 GMC Sierra, Changing the Driver’s Outside Mirror

This 2006 GMC Sierra came in with multiple problems related to being struck by lightning. It was only during the process of repairing other systems that I noticed that the glass in the driver’s side mirror was etched with actual lightning bolts. I personally think it is kind of cool to have a physical recording … Continue reading “2006 GMC Sierra, Changing the Driver’s Outside Mirror”

1998 Ford Windstar Power Mirrors Do Not Work In All Directions

This is a very common problem on most Ford, Lincoln and Mercury products with power mirrors. A vehicle will come in with a complaint of the power mirror does not work in one or two direction. The simplest test is to see if both mirrors react in the same manner. If they do I go … Continue reading “1998 Ford Windstar Power Mirrors Do Not Work In All Directions”