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Key fob not unlocking driver door

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Old May 26, 2015 | 10:02 AM
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Default Key fob not unlocking driver door

My key fob with lock and unlock the passenger door but not the drivers side. Any ideas on what to look for? Thanks in advance for any help.
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Old May 26, 2015 | 10:55 AM
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Can you lock and unlock the door with the switch on the door?
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Old May 26, 2015 | 01:03 PM
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Originally Posted by dadaroo
Can you lock and unlock the door with the switch on the door?
Yes. The switches inside work fine for both sides.
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Old May 26, 2015 | 05:21 PM
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like 8vette7 said it is the relay in the door. very easy to change even with very little soldering knowledge.
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Old May 26, 2015 | 06:02 PM
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I'm guessing the reason dadaroo asked his question is that IF the switch is working it's probably NOT the relay...but, I'm am still learning about all this high tech electronic stuff.
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Old May 26, 2015 | 09:55 PM
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Well, if he hasn't drank too much beer today , maybe in the morning he'll shed some light on the shrouded mystery question...lol
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Old May 27, 2015 | 07:47 AM
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The same relays are activated by the switch and the FOB. So we know they are good and obviously the motor which locks and unlocks the mechanism is working.

So it would appear that there is some issue with the door control module itself or in the serial bus circuit to the door. I really doubt that there is any issue in providing the signal from the BCM.

OP, pull your dash DIC codes and I am sure you will see an issue related to this.

Most likely it is in the connection at the door inside the A-Pillar. It can be reached by pulling back on accordion boot and inspecting the connections at that connector. Common issue among the C5s.

Here is a link to help. Take a look at the 2nd, 3rd, and 4th pictures.

https://www.corvetteforum.com/forums...-there-is.html
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Old May 27, 2015 | 08:14 AM
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Originally Posted by 8VETTE7
Just to be different I'm going to say that if the switch did NOT work then the relays are possibly OK but the motor for the lock is likely what is bad. I'm sure he will correct one of us................
Or, he may correct both of us...
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Old May 27, 2015 | 08:51 AM
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As you guys know, it isn't about being correct but getting thorough input on an issue. Many times I have forgotten to suggest things others have.

Performing diagnostics at a distance is always challenging. Especially since only a few of the OPs have any experience with electricals.
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Old May 27, 2015 | 09:09 AM
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Sometimes staring at the Forest you just forget to look at the Trees...
Sorry OP... back to your issue

As dadaroo stated:

So it would appear that there is some issue with the door control module itself or in the serial bus circuit to the door. I really doubt that there is any issue in providing the signal from the BCM.

OP, pull your dash DIC codes and I am sure you will see an issue related to this.

Most likely it is in the connection at the door inside the A-Pillar. It can be reached by pulling back on accordion boot and inspecting the connections at that connector. Common issue among the C5s.

Here is a link to help. Take a look at the 2nd, 3rd, and 4th pictures.

https://www.corvetteforum.com/forums/...-there-is.html

Last edited by 73Corvette; May 27, 2015 at 09:11 AM.
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Old May 27, 2015 | 09:34 AM
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OP, the serial bus wire in the connector should be Brown. The only one that is that color.

It should be that way for all years. I can verify for your year if you tell me.
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Old May 27, 2015 | 09:38 AM
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Originally Posted by 8VETTE7
Here we go with the bad links again. Doesn't work when I click on it......... Did you try it after you posted it?? Looks like you copy/pasted from a post rather than replying to the post first to be able to get the full link...
Chuck, I just tried accessing the link from my post above. It works for me. Try a little later and let us know.

OP, if you can't get to the link, I can send you the pictures.
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Old May 27, 2015 | 10:02 AM
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Doesn't work for me either...
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Old May 27, 2015 | 11:08 AM
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Originally Posted by 8VETTE7
Here we go with the bad links again. Doesn't work when I click on it......... Did you try it after you posted it?? Looks like you copy/pasted from a post rather than replying to the post first to be able to get the full link...
I couldn't get the link to work either.
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Old May 27, 2015 | 11:17 AM
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This one works for me... try it

https://www.corvetteforum.com/forums...-there-is.html
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Old May 27, 2015 | 01:15 PM
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Originally Posted by 73Corvette
I'm guessing the reason dadaroo asked his question is that IF the switch is working it's probably NOT the relay..............


Originally Posted by dadaroo
The same relays are activated by the switch and the FOB. So we know they are good and obviously the motor which locks and unlocks the mechanism is working.

So it would appear that there is some issue with the door control module itself or in the serial bus circuit to the door. I really doubt that there is any issue in providing the signal from the BCM.

OP, pull your dash DIC codes and I am sure you will see an issue related to this.

Most likely it is in the connection at the door inside the A-Pillar. It can be reached by pulling back on accordion boot and inspecting the connections at that connector. Common issue among the C5s.

Here is a link to help. Take a look at the 2nd, 3rd, and 4th pictures.

https://www.corvetteforum.com/forums...-there-is.html
Sam, your link in this post is working for me.
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Old May 28, 2015 | 07:14 AM
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Thanks for the help guys.
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