In two previous articles I outlined the problems and solutions on a 2005 Buick Lacrosse. Symptom and Solution. Now for the root cause of this failure. In every case that I found, similar to the vehicle I was working on was that the condition was preceded by a battery event. Most notably loose and corroded … Continue reading “2005 Buick Lacrosse, Repeated ECM Failures”
This repair information is an addition to a previously published article. To see that article please click here. The code U1300 turned out to be the most relevant code but SI was severely lacking in background information. SI states that the code U1300 can only be seen as a history code. The U1300 was stored … Continue reading “2005 Buick Lacrosse, U1300 Follow Up Testing”
This 2005 Buick Lacrosse came in with the complaint that the instrument cluster gauges would not work and the T/C , traction control light stayed on. . The customer stated that the air conditioner would have to be turned off and then back on before it would get cold. Through a little bit of research … Continue reading “2005 Buick Lacrosse, Gauges Do Not Work”
The gauge stepper motors had failed in this cluster. If you need to see how to remove the instrument cluster please click here. The first step was to remove the four screws and lever latches that hold the instrument cluster to the dash carrier. Then using a small screw driver to release the clips that … Continue reading “2005 Buick Lesabre, Changing The Gauge Stepper Motors”
This 2005 Buick Lesabre Custom came in with the complaint that the fuel and temperature gauges were not working properly. Since the gauges had gone way past the high marks and were circling back around, I was pretty sure the stepper motor in the gauges were failing. I did do some testing with my Tech … Continue reading “2005 Buick Lesabre, Gas and Temperature Gauges Erractic”