Help please - starting issues
Thread Starter
Racer
Joined: Jun 2017
Posts: 365
Likes: 18
Help please - starting issues
My car started having issues with ‘no fob’ so I have been inserting the fob in the glovebox slot to start the car.
now it doesn’t always start first time even by doing this. Today I was there around 15 mins before it decided to start.
so far I have
-tried both fobs
-changed batteries
-tried to reprogramme the fob by doing the key in trunk method. This didn’t even come up with the reprogramme option on dash.
what could be the issue?
now it doesn’t always start first time even by doing this. Today I was there around 15 mins before it decided to start.
so far I have
-tried both fobs
-changed batteries
-tried to reprogramme the fob by doing the key in trunk method. This didn’t even come up with the reprogramme option on dash.
what could be the issue?
Team Owner
Joined: May 2004
Posts: 82,175
Likes: 1,319
From: McKinney TX
St. Jude Donor '21-'22-'23-'24
Reprogramming the fob won't help. Something in the car is interfering if you have new batteries in the fobs. Something in your pocket, something plugged into a car's electrical outlet.
Maybe the car just needs a new battery.
Also note that the new batteries you put in the fob may be weak and you just need to buy your fob batteries from someplace that sells lots of them, like Walmart.
BUT DO NOT TRY TO REPROGRAM THE FOBS!
Maybe the car just needs a new battery.
Also note that the new batteries you put in the fob may be weak and you just need to buy your fob batteries from someplace that sells lots of them, like Walmart.
BUT DO NOT TRY TO REPROGRAM THE FOBS!
Drifting
Joined: Feb 2003
Posts: 1,614
Likes: 163
From: Davis CA
Very often it is the car battery that needs to be replaced. In the old days a car would try to start with whatever battery voltage was available. Now, if the voltage is too low, the computer says F it. Have you checked your car's battery? How old is it? Etc?
Thread Starter
Racer
Joined: Jun 2017
Posts: 365
Likes: 18
Thanks.
the cars an 07 base.
the only newish things in the car are a Kenwood unit and led interior bulbs.
hopefully it’s not the Kenwood unit and it cost a fair bit, also bought the PAC RP4GM11 to connect it all up.
the cars an 07 base.
the only newish things in the car are a Kenwood unit and led interior bulbs.
hopefully it’s not the Kenwood unit and it cost a fair bit, also bought the PAC RP4GM11 to connect it all up.
Thread Starter
Racer
Joined: Jun 2017
Posts: 365
Likes: 18
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Le Mans Master
Joined: Sep 2017
Posts: 5,767
Likes: 2,968
From: Rural NW Georgia. GO DAWGS!
2024 C8 of the Year Finalist - Unmodified
Thread Starter
Racer
Joined: Jun 2017
Posts: 365
Likes: 18
Thanks for all your replies.
After a few hours taking things apart, checking fuses, relays, car battery, fob battery, alternator, power cables, earth connections and disconnecting the Kenwood unit, I finally figured it out!!!
It’s the interior led lights I fitted. Now I’m not sure if it’s the footwell, mirror or puddle lights but if I give it a few minutes after entering the car and allow them to turn off then the car starts. If I try to start while the lights are still on I get ‘no fobs detected’.
Also if I switch the car off and the lights are on I get ‘ no fob run’ message. Again fine if lights are off.
After a few hours taking things apart, checking fuses, relays, car battery, fob battery, alternator, power cables, earth connections and disconnecting the Kenwood unit, I finally figured it out!!!
It’s the interior led lights I fitted. Now I’m not sure if it’s the footwell, mirror or puddle lights but if I give it a few minutes after entering the car and allow them to turn off then the car starts. If I try to start while the lights are still on I get ‘no fobs detected’.
Also if I switch the car off and the lights are on I get ‘ no fob run’ message. Again fine if lights are off.
Safety Car
Joined: Aug 2017
Posts: 4,927
Likes: 2,334
From: Etobicoke (Toronto) Ontario
It must be the case that some LED brands emit more RFI than others. Maybe the Kenwood emits some as well, so now the total noise interferes with the fob reception. I've got LEDs in all the cabin lights, but no Kenwood or fob problems.
Last edited by FatsWaller; Feb 25, 2021 at 05:35 PM.
Burning Brakes
Joined: Jan 2019
Posts: 1,225
Likes: 682
From: Park City, TN
2024 C6 of the Year Finalist - Unmodified
2023 C6 of the Year Finalist - Unmodified
2022 C4 of the Year Finalist - Unmodified
2021 C4 of the Year - Unmodified Finalist
2020 C4 of the Year Finalist - Unmodified
2019 C4 of Year Finalist (stock)
Just as an FYI, I have an LED interior kit from VetteLights and a Kenwood DMX907S.
No issues.
Perhaps take out the LEDs (maybe leave in one) and try it to confirm?
Could be the brand of LEDs.
Kit I have:
https://www.vette-lights.com/collect...terior-led-kit
No issues.
Perhaps take out the LEDs (maybe leave in one) and try it to confirm?
Could be the brand of LEDs.
Kit I have:
https://www.vette-lights.com/collect...terior-led-kit
Last edited by puterami; Feb 26, 2021 at 09:28 AM.
