Wow $1,500?!! That makes Wild Bill's look pretty reasonable which is something I don't often say.NEW IN BOX CHEVY 2003-2004 SSR RDM MODULE 15134308. Condition is New.this is a brand new in the sealed box Shipping flat rate $25.00 usa only.www.ebay.com
I don`t have Tech2. i use Launch X431 (LAUNCH-X431)How do you know it is bad? Did you check it with a Tech 2?
Most of the times it is something else rather than the RDM
Would you please describe the problem your having and what you have tried to fix it.
People will then chime in with suggestions for things to try or how to fix the problem.
Can you communicate with the modules listed?Usally the module you CAN communicate with is not bad. It reporting that it is not receiving a good state of health message from the modules listed. The RDM is most likely not the cause of these codes. Suspect power, ground or communication wiring to these modules or these modules may be bad.
Can you communicate with the modules listed?
Do you have access to a lab scope?
How did you check the communication wires?
I know you've posted issues in the past regarding cooling fan, and sombody hacked it pretty gound. Did you remove all non stock connections in the harness. Like i think there was an unidentified one to mass air sensor.
Yes, also PCM give me data to TCMSo this means YOU CAN communicate with the Engine control computer (Should be PCM on 04). I would then also try a couple of things --- can you use the "bidirectional controls on the outputs from the PCM - turn on cooling fans, fuel pump, AC compressor ?
--- does the data appear to make sense?
i can turn on light and any test over my diagnostic tool (launch x431)Same for the BCM --
Can you control the door locks ??? I know there was an issue with one the buttons actually moving the mirrors -- but do they work when you try to activate with the scan tool?
Do the inputs make sense --- watch door lock input data - does it response properly to activating the button
Can you find the VIN listed in the BCM data - does it match your VIN?
But BCM, SIR, IPC, ABS see ECM and only two RDM and amplifier did`t see. RDM and amplifier use one wire class 2 data lineThe BCM is the powermaster on all years of SSRs -- the powermaster transmits on the data line (which goes to all module on this line) which modules should be awake. Those modules then wake up and send a state of health message to all modules. If a module does not see a good state of health from a module it expects to see, it sends a signal (sets a code). IN this case both the RDM and amplifier are saying the ECM is missing.
What i know both BCM has same P/NSo I want to ask
You stated in a previous post you had two BCMs one showed unknown driver and another one. Do they both have the same GM part#.
Does the VIN that is displayed on your scanner match your VIN - because you have no information about the why BCM was replaced etc. I am wondering if the original BCM displayed unknown driver and a replacement BCM was installed that was not programmed specifically for your car and while it sends out a good state of health message it is confusing the information to the other modules.
Just a thought - because you/we don't know the history.
I mean when key in position RUN on BCM has + (yes i see pulse signal), but when key in position off on BCM - (ground signal)I am not sure what you mean by a signal, and when you say negative again what and how much? When communicating, the class 2 data line is a digital signal (rapid on/off) from about 0v to about 7volts. The on/off movement is too fast to see on a voltmeter. But is should be the same at every module on the data line and every terminal on the splice pack (when back probing) and terminal 2 of the data link connector. With the key on and engine off you should read some voltage usually around 2-3 volts DC as the meter is averaging the on/off pulses. You will also be able to pick up a frequency signal indicating that there is communication and depending on the number of modules communicating this is around 4-5 K Hz.
I fix it.All of the wires are the same color! Really, did somebody rewire inside the door? What about the other door, what about the the connector behind the kick panel where the door harness plugs to body harness. The mirrors on the SSR does not go through any module!! Somebody has done something somewhere to the wiring harness!!! Maybe you should forget the computer stuff and start by fixing the mirrors, who knows you might find a spot in the harness that is screwing everything up.
ThanksHere is a somewhat decent video for those that want a little more about class 2 data education.
Thank you.Denis have you checked with WIld Bills SSR Parts he has a repair service to repair them as well as used ones available on his web site. The price is much cheaper than the one for $1700.00