Buy Now | Log In | ALLDATA Corporate Site | AutoZone.com
Back To Home Page
Log In To Your Subscription
Go To ALLDATA Back Home
Buy A Subscription! Back Home About ALLDATA Information View Sample Vehicles Read Testimonials View Factory Service Bulletins and Recall Titles Contact Us
Dowload Our Navigation Chart
February 2015: New vehicles added including 2014 GM.
• View New Vehicles
October 2014: Release of 2013 along with initial 2014 Vehicles
• View Vehicles
View All News and Updates:
• Go To News
Tech Tips
  Read All Tech Tips

ALLDATA Tech Articles Are Updated Weekly
• View All Tech Articles

  Dodge Durango: Brake Pulsation Problems In Paul's Durango
• Read Dodge Article
 
Fixing A Smelly Audi Audi Tech Tip: A4 begins to Smell caused by a Faulty Hose Composition
• Read Audi Article
Why Do You Need To Change Your Timing Belt? Why Replace Your Timing Belt
• Read Belt Article
Jim Grant Tech Tips Jim Grant Tech Tips
A collection of helpful articles based on reader submissions
Home >> Featured Tech Articles >> Go Back
   
  Jim Grant's Tech TipsJim Grant's Tech Tips
Below is a collection of Jim Grant's Tech Tips sorted by Vehicle Make. These Tech Tips were answers to questions submitted to Jim by ALLDATAdiy.com users over the course of many years.
If you have any questions, please feel free to email us.
 
 

Miscellaneous
Acura
Audi
Buick
Cadillac
Chevy
Chrysler

Dodge/Plymouth
Ford
GMC
Geo
Hyundai
Honda
Isuzu

Jeep
Lexus
Lincoln - Mercury
Mazda
Mercedes
Mitsubishi
Nissan
Oldsmobile
Pontiac
Saturn
Subaru
Toyota
Volkswagen
 
   
  Jim Grant's Tech Tips

'99 Chevy Blazer, No Keyless Entry

Q: I have a '99 Chevrolet Blazer and the other day the keyless entry quit working. My Power locks are still functional along with power windows. I have replaced the battery in my transmitter and checked all fuses. My question: is there something I could do to check this out before taking the vehicle to be repaired??

A: Once the battery gets low or is removed from the transmitter it must be re-synchronized with the vehicle system to operate. Also if the battery in the vehicle is dead or disconnected for an extended period of time it will need to be resynchronized as well. The transmitter for most of todays vehicle's does not transmit the same signal/code twice in a row. It is best described as a rolling code that changes each time the transmitter sends a signal to the vehicle's receiver. The two components work together in this game to prevent anyone from recording the transmission data (which is easier than you can imagine) to unlock your vehicle for their inspection. To resynchronize the transmitter to the receiver, stand about 5 ft from the vehicle. At the same time press and hold the lock and unlock buttons of the transmitter for about 7 seconds. The door locks should cycle to confirm the transmitter and receiver are back in the game. Note; this does not work with other systems; each manufacturer has their own idea of how the game must be played when it comes to resynchronizing transmitters.

 
     
Have any Questions About ALLDATAdiy.com? Please Email Us
Buy Now | Log In | About | Sample Vehicles | Testimonials | Join Affiliate Program