Another "NO KEY FOB" issue
Thread Starter
Pro
Joined: Jun 2012
Posts: 512
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From: Roseville California
Another "NO KEY FOB" issue
Hi All, I know I've seen key fob threads here before but haven't been able to find one. With that said, got in the car this morning, pushed the button and nothing except NO KEY FOB DETECTED on the DIC. I tried a couple more times and still nothing. I pulled the escape lever, the door opened and the horn started honking. I reset the alarm on the FOB, closed the door tried again and bingo it started. Now I would think this to be maybe a battery issue but my wife had the same experience the other day and she doesn't know about the escape lever. Any thoughts?
Thanks for your help, Ken
Thanks for your help, Ken
Thread Starter
Pro
Joined: Jun 2012
Posts: 512
Likes: 11
From: Roseville California
Thread Starter
Pro
Joined: Jun 2012
Posts: 512
Likes: 11
From: Roseville California
I have a 3 month old AC DELCO. I had a dead battery issue a month after I installed it and had AAA jump it. Took it to Chevy dealer, they tested it and said it was fine but that's another WTF dealer experience story. Bought a CTEK and all is fine. So with that, I don't think it's a battery thing.
Race Director
Joined: Oct 2010
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From: Las Vegas NV
If it happens in the same place all the time it could be RF interference from something nearby. Or if you have anything plugged into the 12v outlet like a charger or phone, that can cause it as well.
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From: Honolulu HI
I had my OE delco battery as well as both of my original fob batteries die within weeks of one another. Might was well go for the trifecta and replace them all.
Last edited by MTPZ06; Apr 11, 2018 at 02:35 PM.
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From: Peoria/Phoenix AZ
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The easy test for fob batteries is to use the glovebox slot to try starting the car.
However, having to use the emergency door release because the interior door button had no power, has no relationship to the fob, which rules out interference issues and any other fob problems.
Considering it also happened to your wife (please inform her about the floor release) and eventually started, the problem is an intermittent electrical issue. Check, clean, and tighten the battery connections and check the cable connection at the solenoid. Make sure there is some slack in the positive cable to the solenoid, since it's real easy to crack the post when the engine flexes. If the problem continues, it's an intermittent short in the battery.
However, having to use the emergency door release because the interior door button had no power, has no relationship to the fob, which rules out interference issues and any other fob problems.
Considering it also happened to your wife (please inform her about the floor release) and eventually started, the problem is an intermittent electrical issue. Check, clean, and tighten the battery connections and check the cable connection at the solenoid. Make sure there is some slack in the positive cable to the solenoid, since it's real easy to crack the post when the engine flexes. If the problem continues, it's an intermittent short in the battery.
Thread Starter
Pro
Joined: Jun 2012
Posts: 512
Likes: 11
From: Roseville California
The easy test for fob batteries is to use the glovebox slot to try starting the car.
However, having to use the emergency door release because the interior door button had no power, has no relationship to the fob, which rules out interference issues and any other fob problems.
Considering it also happened to your wife (please inform her about the floor release) and eventually started, the problem is an intermittent electrical issue. Check, clean, and tighten the battery connections and check the cable connection at the solenoid. Make sure there is some slack in the positive cable to the solenoid, since it's real easy to crack the post when the engine flexes. If the problem continues, it's an intermittent short in the battery.
However, having to use the emergency door release because the interior door button had no power, has no relationship to the fob, which rules out interference issues and any other fob problems.
Considering it also happened to your wife (please inform her about the floor release) and eventually started, the problem is an intermittent electrical issue. Check, clean, and tighten the battery connections and check the cable connection at the solenoid. Make sure there is some slack in the positive cable to the solenoid, since it's real easy to crack the post when the engine flexes. If the problem continues, it's an intermittent short in the battery.
Race Director
Joined: Sep 2007
Posts: 16,557
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From: Peoria/Phoenix AZ
C6 of Year Finalist (performance mods) 2019
I have been experiencing intermittent key fob issues for a while now; NO FOB DETECTED, NO FOB ON OR OFF. I'll check the battery cable solenoid possibility this morning. If it's a short in the battery, is it something that can be diagnosed or is it one of those issues that can't be diagnosed unless the battery is completely dead?
You previously said you had to use the emergency door latch, because the door button wouldn't work. That's a clearly a lack of power from the car battery. After you opened the door, the horn worked, which indicates power was restored. AKA intermittent power.
A "NO FOB DETECTED" message indicates there is enough car battery power to run the car's electronics, but there is a lack of communication between the fob and the car. AKA electrical interference or low fob battery.
Resolve the primary power issue first. Deal with the fob problem later.
