I have noticed on the website that there are a lot of complaints about this control module-it is just an accident waiting to happen. Your best bet ,take it to a qualified repair shop that has a diagnostic tool that can communicate with the 4X4 control module. Then, the engine immediately dropped power. The consumer states that 2003 Chevrolet C 2500 was having a message on the instrument panel showing reduced engine power. Note: once you have disconnected the connectors you will notice one of the large connectors is grey middle connector , make sure it goes back into the proper place when reinstalling.
It was weird; the small line that normally appeared under each letter indicating P, R, N, D, M, etc. We've worked hard over 11 years designing a website experience that makes it easy for anyone to idenify whether parts fit their car. Also, when I called the dealership to make an appointment im afraid to drive the car they said the soonest they could take me was on Tuesday 4 days from now -even after I had explained the whole situation. When a module receives a message for a critical operating parameter, the module records the identification number of the module which sent the message for State of Health monitoring. The axial spline junction on my shaft was too rusted to 'telescope' in for full removal, so taking the yoke brackets off of the … front universal joint was enough for the next step.
The doors would lock only manually. I have researched this issue with all Chevrolet trucks from various years. May I suggest the Actron Brakescan tool which covers most domestic vehicles from 1996 to 2005? The selection switch does not light up. By law they are yours to keep just in case there is dispute. When a module receives a message for a critical operating parameter, the module records the identification number of the module which sent the message for State of Health monitoring. But code have a few others as well. Sometimes, it would shift into gear but wouldn't shift from 3rd to 4th engine speed would stay between 2000 and 2500 at 60 mph when it normally would have shifted and dropped to 1500-1800 rpm at that travel speed.
The 4X4 switch get's it's B+ voltage from the four - wheel drive control module. Also the lower coverings will need to be removed as well. For more information go to. I'll save the rest for over a beer at a rally somewhere. Good luck on this repair. I used an air impact wrench.
Thank you for using FixYa, have a nice day. Four separate gm dealers, in two states, have attempted fix via: 1. Hard shift from first to second felt like transmission dropped from vehicle. It is not hard to get to. I'll save the rest for over a beer at a rally somewhere. The dealer replaced three times the wiring harness to the throttle position sensor, throttle body, power train control module, throttle actuator, control module, also, the ignition switch was replaced and the engine was still losing power.
I have noticed on the website that there are a lot of complaints about this control module-it is just an accident waiting to happen. This information refers to the 15748800 module. This is a serious problem if you are driving and the truck looses power; especially when you're going down hill traveling at a high rate of speed and your transmission doesn't function properly. Main symptom was truck not shifting into gear when I depressed brake pedal and moved shift lever. Trans control modules do go bad.
Some will take advantage of someone stuck and from out of town. Again, my impact wrench saved my bacon. A good dealership will only replace what is needed. Sent from my iPhone using Tapatalk Our son is a master mechanic and he despises all the electronic components on vehicles. Dealer says it is because of sensors in wheelbearing and the wheelbearings need to be replaced. This was a Sunday late afternoon, so I was going to either drive it or have it towed to nearest Chevy dealer Monday a.
While the vehicle was idling at a red light, the contact depressed the accelerator pedal, but the vehicle failed to accelerate. Dealer says they have had problem on several vehicles. He says he's seen so many times one component failing leading to another and another. When this occurred, it rendered the 4 wheel drive inoperative. Just go ahead and call the phone number at the top of the page and a friendly specialist will help you out.