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C7 Won't Start

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Old Jul 26, 2021 | 10:29 AM
  #1  
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Default C7 Won't Start

My 2014 C7 won't crank.
Tried jump starting it with a #2 jumper cable.
Checked the battery with a load tester, fully charged and good.
Key fob battery replaced and placed in steering column, tried to start with both key fobs.
Manual transmission.
No Codes
When you hit the start button it won't crank, the dash lights up properly and it keeps showing depress clutch when it's depressed.
I was on a hill so I tried roll starting it with no success, engine turned over when clutch was released but it still wouldn't start.
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Old Jul 26, 2021 | 10:55 AM
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Originally Posted by Sahuaro3
it keeps showing depress clutch when it's depressed.
I'm gonna go out on a limb and say there's a problem with your clutch pedal sensor.
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Old Jul 26, 2021 | 02:30 PM
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How old is the battery? Mine was a 19 and the Battery bit the dust. Sure it showed ok on my gauge and I'd tried a GlowPro jumper box - still no go. Had a guy come by with a megabox jumper and it started right up. Dealer replaced the battery and check the system out - all ok.
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Old Jul 26, 2021 | 03:05 PM
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Originally Posted by Jeff V.
I'm gonna go out on a limb and say there's a problem with your clutch pedal sensor.
Yea this is probably the issue. However my gut leans to the battery, but if it "tested ok" then the next place I'd turn in the clutch pedal sensor.
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Old Jul 26, 2021 | 03:19 PM
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A marginal battery isn't going to cause one specific switch to consistently throw a fault.
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Old Jul 26, 2021 | 03:29 PM
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With everything else indicating normal, I'd be looking into the clutch pedal sensor/wiring as well..
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Old Jul 26, 2021 | 03:40 PM
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What a frustrating problem when you can't even roll start the car
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Old Jul 26, 2021 | 03:54 PM
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Originally Posted by dbirdhouse1
What a frustrating problem when you can't even roll start the car
Given modern electronics I'd be surprised if a roll start would work. That trick was just used to force the engine to turn over. In this case a message indicates the clutch pedal sensor isn't giving the ECU the all clear signal to allow the vehicle to start.
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Old Jul 26, 2021 | 08:40 PM
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Try pulling up on the clutch pedal with your foot before starting. This happened on my '09.
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Old Jul 27, 2021 | 08:31 AM
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Jumped the switch and still have the issue, the "Press Clutch to start goes away and the reappears after a start is attempted. Replaced the battery still no go.
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Old Jul 27, 2021 | 01:42 PM
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Have you checked diagnostic codes?
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Old Jul 27, 2021 | 02:23 PM
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How about the 350A fuse on top of the battery? Did it pop?

Elmer
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Old Jul 27, 2021 | 02:47 PM
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My car requires the brake pedal to be depressed at the same time as the clutch to start.
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Old Jul 27, 2021 | 03:11 PM
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Originally Posted by mickeyone
My car requires the brake pedal to be depressed at the same time as the clutch to start.
I don't have to do that to mine.
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Old Jul 27, 2021 | 04:51 PM
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Weird it didn’t throw a code. If it does throw a p2534 code let me know. I’m now an expert on that code.
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Old Jul 27, 2021 | 07:28 PM
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Originally Posted by mickeyone
My car requires the brake pedal to be depressed at the same time as the clutch to start.
Thought that was a 2019 “feature”.
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Old Jul 27, 2021 | 07:58 PM
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Originally Posted by jaki30
Thought that was a 2019 “feature”.
Yes, it is, my 17 Camaro didn't have that added feature and it's kind of a PITA on my Stingray.
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Old Jul 27, 2021 | 08:21 PM
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Originally Posted by jaki30
Thought that was a 2019 “feature”.
It is... My '17 didn't require it, the '19 does
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Old Jul 28, 2021 | 01:07 PM
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I will not be able to get to the car until this weekend (business travel). I will check the concerns on the posts and let you all know. Thank-you all for your input so far. I am determined to figure this out or exhaust all resources before I take it to the dealer. Mainly because I like a challenge. I would also like to share me findings for anyone in the future.
FYI Car has never required the brake to be depressed with the emergency brake on, but it might not be seeing the emergency brake. First thing I will try. Then I'll ohm the fuse for the starter.
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Old Jul 29, 2021 | 08:33 AM
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Originally Posted by jaki30
Thought that was a 2019 “feature”.
That's just as bad as putting the manual 2005 C6 in reverse to shut it down.
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