dic info gauge readings
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That was one of the first things I did when I first encountered this problem. I have been through most of the grounds and everything looks really good. I will check that connection again. Thank You
Drifting
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From: Summerville South Carolina
Bill,
Dave
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I have been looking at my service manuals attempting to identify the PINK wire that OP is referencing. Can you shed light on that? Seems all is normal with that dc'd. I keep coming back to the LDCM. Mr. Sam taught me a lot (RIP), but I am still learning to properly interpret the schematics.
Dave
Dave
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Does that wire go through any other connections or straight back to the receiver? Is that receiver behind drivers side plastic piece in hatch compartment?
Last edited by Dahc; May 29, 2016 at 08:51 PM.
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From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
YES the module is under the interior wheel well trim/ Speaker cover.. drivers side.
Bill
Drifting
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From: Summerville South Carolina
Hey Bill,
Dave.
Tech Contributor
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From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
We didn't ISOLATE IT,,, 
You need to.. The bottom of the fuse box has Connector wells C1, C2 & C3. The pins in the wells are all labeled..You need to find the IN and OUT pins. Before I messed with the fuse box, I would read the wire Module to STAR connector and then wire to chassis ground. See what you get. Report.
The wire could be shorted to ground, shorted to another wire or the module could be bad. Read the STAR connector PINK WIRE to ground and report that reading.
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We didn't ISOLATE IT,,, You need to.. The bottom of the fuse box has Connector wells C1, C2 & C3. The pins in the wells are all labeled..You need to find the IN and OUT pins. Before I messed with the fuse box, I would read the wire Module to STAR connector and then wire to chassis ground. See what you get. Report.
The wire could be shorted to ground, shorted to another wire or the module could be bad. Read the STAR connector PINK WIRE to ground and report that reading.
Last edited by Dahc; May 30, 2016 at 08:12 PM.
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From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
The SERIAL DATA line just carries digital data. Very very low voltages.
Your going to need to verify the integrity of that circuit. If connecting the PINK wire KILLS the circuit,,,,, somethings probably wrong with or in that circuit.
Measure the Resistance OF that circuit and figure out if its shorted to something oR see if the module has an issue. Disconnect the module and then connect the pink wire and see if it still has the same issue
BC
Your going to need to verify the integrity of that circuit. If connecting the PINK wire KILLS the circuit,,,,, somethings probably wrong with or in that circuit.
Measure the Resistance OF that circuit and figure out if its shorted to something oR see if the module has an issue. Disconnect the module and then connect the pink wire and see if it still has the same issue
BC
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I disconnected the receiver and plugged in the pink wire. With ignition on I got pull key wait 10 seconds then started it and got the same thing. I tried to move and got fuel cutoff. I shut it off and restarted no problems no codes. I do have the lmc5 module hooked up. drove it twice with no problems and no codes. Not sure why I got the pull key message though. I will talk to Richard at compliance parts and see what he thinks about that. Only thing I noticed my turn signals were intermittent. They did not do it too much. Usually just for a few seconds. Other than that everything went great. So I am assuming that the receiver is bad. There are three wires connected to the receiver. Could the other two wires be causing a problem? I want to say thanks again for all the help from everyone. This is a great forum.
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Can anybody tell me where the other two wires from the receiver go to? Does anybody have schematic? How should i go about testing these two wires?
Last edited by Dahc; Jun 2, 2016 at 03:29 PM.
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So the ground wire I need to check for resistance? Wire A I need to check for voltage with the car on or off? Will I see full 12 v? The pink wire any way to check that? I don't want to plug in new receiver and ruin it.
Drifting
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From: Summerville South Carolina
I am curious as to whether
Dave
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When I switched bcm it did the same thing. So I do not believe it is that. I have had receiver disconnected with no problems. Waiting on gm to see if I can get a new one.
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finally got my new receiver put in. Everything looks good. New key fob synced right up no problems. I do not have new tire pressure sensors yet. I am getting 1 code rfa c2121 hc. Tpm system programming malfunction. I am taking that i am getting this code because i do not have new tire pressure sensors yet. With the new receiver i am having trouble getting mounted in old location for old receiver. Does anybody know if this new receiver will fit in the old bracket? I want to thank everyone that helped out.