Tip & How-To about Car Audio & Video
First, explanation of radio codes. - It's a theft deterrent built into your radio from the factory. Every factory has a different sequence or order that code must be entered. When vehicle is sold new there is usually a card(s) separate from the owners manual for security.(Most times former owner still has it in his wallet and not in glovebox) The only way you can get your radio code is by contacting dealer and provide them the VIN# of your vehicle. Some even require you to come in physically w/proof of ownership. Each code is specific to VIN and make and there literally thousands of combinations.
Once your radio loses power or your battery is disconnected it's almost a given that you'll need the code to get radio back up & running.
TIP: If you have your code, or once you get it from the dealer - take 30 secs and write it down in glovebox or someplace safe in vehicle w/a Sharpie, then you won't have to hassle chasing it down when your battery goes dead or you're doing maintenance.
Posted by Mical... on
The CTD system requests the IPC to illuminate the indicator only when the ignition switch is OFF. The CTD system uses the indicator in order to identify system status. For specific CTD condition that will illuminate the security indicator, refer to Content Theft Deterrent (CTD) Description and Operation .
The IPC performs the displays test at the start of each ignition cycle. The indicator illuminates for approximately 3 seconds.
SERVICE THEFT SYSTEM The radio illuminates the SERVICE THEFT SYSTEM message when the VTD system detects a failure. The radio receives a message from the theft deterrent control module via the serial data circuit requesting illumination.
This is one you need to take to the dealer , unless you have a GM factory scan tool !
Nov 21, 2015 | 2004 Cadillac CTS
Car Factory Alarm will go off? http://repairhelpcenter.blogspot.com/2012/01/toyota-avalon-factory-alarm-will-go-off.html
---------Car will not start security lock out? http://technoanswers.blogspot.com/2011/12/car-will-not-start-security-lock-out.html
---------Alarm will not disengage? http://technoanswers.blogspot.com/2012/01/ford-pickup-alarm-will-not-disengage.html
--------This will help.For more info keep updated.Thanks.
Feb 09, 2012 | 1998 Plymouth Voyager
Feb 25, 2011 | 2004 Buick LeSabre
In the wiring diagrams there is a COMPUTER DATA LINES SYSTEM wire. From what I have read the radio won't cause the car not to start. Did you make sure you didn't drain the battery? Is the Theft Deterrent light on? If it is you're going to need a scanner to get the codes. This is what the Theft Deterrent system does with the radio.
I think if the Theft Deterrent light is on you will have to start there if not just diag a no crank condition.
Oct 31, 2010 | 2003 Chevrolet Impala
Oct 18, 2008 | 2000 Mitsubishi Eclipse
2,209 people viewed this tip
Usually answered in minutes!