Help c6 no start
Thread Starter
3rd Gear
Joined: Oct 2019
Posts: 3
Likes: 0
Help c6 no start
Question about my c6 base, my car did not open when i was near with my fob so i had to make my way in thru my trunk. New batteries in fob. Then i proceed to try and start my car and the clicking sound then my dash lights up and press my start button all the dash lights go dead. But i put the window wiper switch on high the car will start without my foot off the brake. So then i turn my window wiper switch off all my service lights come on and my scanner says i lost all communication with al my ecm and bcm. Any help suggestions?
Team Owner
Joined: May 2004
Posts: 82,175
Likes: 1,319
From: McKinney TX
St. Jude Donor '21-'22-'23-'24
Your car does not know anything about your fob being near until you either try to open the car door, try to open the rear hatch, or press a button on the fob.
Can't help you with the other activities.
Can't help you with the other activities.
Instructor
Joined: Oct 2019
Posts: 124
Likes: 10
From: San Diego, CA
Question about my c6 base, my car did not open when i was near with my fob so i had to make my way in thru my trunk. New batteries in fob. Then i proceed to try and start my car and the clicking sound then my dash lights up and press my start button all the dash lights go dead. But i put the window wiper switch on high the car will start without my foot off the brake. So then i turn my window wiper switch off all my service lights come on and my scanner says i lost all communication with al my ecm and bcm. Any help suggestions?
Team Owner
Joined: Apr 2013
Posts: 26,243
Likes: 4,361
From: Chirper Island
Question about my c6 base, my car did not open when i was near with my fob so i had to make my way in thru my trunk. New batteries in fob. Then i proceed to try and start my car and the clicking sound then my dash lights up and press my start button all the dash lights go dead. But i put the window wiper switch on high the car will start without my foot off the brake. So then i turn my window wiper switch off all my service lights come on and my scanner says i lost all communication with al my ecm and bcm. Any help suggestions?
Pro
Joined: Jul 2012
Posts: 625
Likes: 57
From: San Jose CA
Race Director
Joined: Jul 2005
Posts: 12,045
Likes: 3,588
From: Central MO
Very likely a car battery on its way out. Today's computer-controlled cars do wacky things when battery voltage gets low, and Corvettes seem to be particularly sensitive to low battery voltage. First thing I would do is fully charge the battery and have it load tested to verify it is still good.
I recently had my battery (at least 5 years old as it was in the car when I bought it) fail to start the car, then cause all sorts of wacky symptoms - dash lit up like a Christmas tree, exterior lights on when hooked up to the charger (including only the passenger side headlight). I fully charged the battery and the car now starts fine. I threw a set of jumper cables into the trunk as insurance, in case the battery is really bad and won't hold a charge. I don't want to replace the battery now, when I will only be driving the car occasionally for the next 4 months, unless the battery is truly bad. I will replace it next Spring unless I find out when I occasionally drive the car that the battery is bad.
I recently had my battery (at least 5 years old as it was in the car when I bought it) fail to start the car, then cause all sorts of wacky symptoms - dash lit up like a Christmas tree, exterior lights on when hooked up to the charger (including only the passenger side headlight). I fully charged the battery and the car now starts fine. I threw a set of jumper cables into the trunk as insurance, in case the battery is really bad and won't hold a charge. I don't want to replace the battery now, when I will only be driving the car occasionally for the next 4 months, unless the battery is truly bad. I will replace it next Spring unless I find out when I occasionally drive the car that the battery is bad.
Last edited by BadAV; Oct 22, 2019 at 07:52 AM.
Thread Starter
3rd Gear
Joined: Oct 2019
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Instructor
Joined: Oct 2019
Posts: 124
Likes: 10
From: San Diego, CA
Could this be a ground issue, have you checked that body ground point that is almost underneath the battery? I just pulled this on mine - cleaned with emery cloth and applied light electrical grease to stop corrosion.
Edit: was battery replaced before or after this issue? If before then clean the terminals and connectors.
Edit: was battery replaced before or after this issue? If before then clean the terminals and connectors.
Last edited by lstoys; Oct 22, 2019 at 07:03 PM.