Quote:
Originally Posted by JAD  I did this and was told by the Roadside guy that he thought that there was a communication problem between the ESM and the radio. I would have to bring it in to the dealer and have them re-teach the ESM and radio to communicate and the cost would be several hundred dollars. He sugested I leave the car as is and just maunally power off the radio each time instead of spending the money :-( |
There is no communication problem, he just coded it the wrong way and this is just an excuse to make money.
Providing you have the instructions to reset the radio code try this first. Take the key out of the ignition and remove the negative battery cable for two minutes or so and then reattach the cable, but do not tighten the nut, because you might have to go to the alternative solution. Then turn the key to the on position and leave it there for a couple of minutes and turn the key off. Do not start the truck and then follow the instructions for entering the radio code and see if the radio turns off when you turn off the key.
If this did not do the trick, then the alternative solution is similar to the first. Remove the key from the ignition, remove the negative battery cable and put a rag over the neg. terminal of the battery. Now get a piece of wire long enough to reach both battery cables. Strip both ends of the wire and wrap one end around the positive cable and with the other end, rub the jumper wire against the neg. battery cable for about three secs. or so. Please do not think that there is any danger involved. There will be no sparks. Nothing will happen Remove the jumper wire and then reattach the neg. battery cable. This process will erase, what is called Keep Alive Memory. Then go about recoding the radio and see if it works properly. Below is a drawing I made so you can better understand the process.
In any event whether either solution works or not, turn the key to the on position for a few minutes, then turn off and start the truck.
DO NOTtouch the gas pedal and let the truck idle for 10 mins. This will give the computers time to relearn. Then if there are any problems, follow these steps:
1. Code radio.
2. Set time on instrument cluster.
3. If necessary, set time at stationary heater timer
4. Start engine and run at idle. Turn steering wheel from on lock position to the other to activate steering angle sensor.
5. If equipped, normalize tilting/sliding roof. Open sunroof and hold down switch. Sunroof moves to end position and pulls back ¼ turn and stops. If equipped with lamella sliding roof, close roof and keep switch pressed fro 5 to 10 seconds.
6. Normalize power windows. Completely close each window with manual switch. Hold switch in closed position for 5 seconds.
7. If there is no throttle response, with ignition on and engine not running, slowly press gas pedal all the way down and then slowly release all the way up to re-learn throttle settings.
Please let us know how you make out.