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I was looking to remove my radio. I am unable to turn off the theft lock on the radio.Do I need to turn it off or will it read my vin#. I don't want it to lock.

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Posted on Jan 02, 2017

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SOURCE: what is the radio code? it reads loc. vin

your code should be in owners manual if you no longer have code call gm dealear ask for service or parts give them vin and they should be able to help you

Posted on Jan 23, 2011

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I need to know how to do a relearning process for the PCM to communicate the TDS on my 1998 Cadillac DeVille I recently replaced the computer and it won't start! I plugged my scanner to it and it only...


The last time I looked, the PCM has to be programmed by a dealer or authorized shop for the vehicle VIN number (the anti-theft and radio systems will already be programmed to only accept this number). If it is, then the anti-theft system has to be reset, also usually by a dealer with a programmer.

Mar 31, 2015 | 1998 Cadillac DeVille

1 Answer

I need the radio security code for a 1999 cadillac sts


You will need to contact Cadillac service at your local dealership. Give them the serial number on the radio. They can then pull the anti theft lock code from their companies archive. The serial number on the radio is typically tied to a VIN, but since you bought just the part, they can't search that way. Hope that helps.

Sep 16, 2012 | 1999 Cadillac Seville

1 Answer

SEC appears on the radio Lexus ES300


SEC stands for security, the radio is in theft lock you must enter the unique code security that came with the car when new to unlock the radio, this SEC is triggered whenever the radio losses power like a theft or a battery disconnect. If you don't have this unique code you must see the Lexus dealer, they can look it up in the factory information link, it goes by the serial number of the radio and the VIN or the car.

Jun 28, 2011 | Lexus ES 300 Cars & Trucks

1 Answer

I removed the battery and when i put it back i cant turn on the radio it ask me for a Code and i dont Know it


You have to go to the dealership to get the theft lock code for the radio if you don't already have it. go to the parts department, tell them your need a radio code and give them your VIN. They'll probably charge you a couple bucks and turn it on for you. just make sure you right the code down for later, if you ever changer the battery again.

May 03, 2011 | 1993 Jaguar XJ6

2 Answers

How do you unlock a 2003 Hummer RDS radio reading LOC


About the theftlock RDS radio system.
* The theft deterrent system now utilizes class 2 serial data to determine if the radio is in the authorized vehicle.
* Each time the radio receives accessory power from the ignition, it compares the VIN information it has stored to the VIN information received from a module on the class 2 serial data circuit responsible for transmitting that information.
* If a match does not occur, the radio display will indicate "locked".
* Once this occurs the radio will not respond to operations and become inoperative.


The following conditions will enable radio lock:
* A radio is installed from another vehicle.
* A module which communicates on the class 2 serial data circuit which supplies VIN information to the radio is replaced and not properly setup with the correct VIN information for that vehicle.

To unlock radio you will need access to a GM scan tool. Hope helps (remember to rate this).

Oct 20, 2010 | 2003 Hummer H1

1 Answer

Radio shuts off


Security Code (Theft-Deterrent) required or Fuse blow. Recently unplugged the battery? or any work in there?

Theft-Deterrent Feature
THEFTLOCK is designed to discourage theft of your radio. Your vehicle has a “built-in” theft-deterrent feature on each radio that is automatic -- there is no programming required. The radio in your vehicle cannot be used in any other vehicle. When the radio was originally installed in your vehicle at the factory, it stored the Vehicle Identification Number (VIN).

Each time the ignition is turned on, the VIN is verified. If the vehicle’s VIN does not match the VIN stored in the radio, THEFTLOCK will be activated and the audio system will not play. If the radio is removed from your vehicle, the original VIN in the radio can be used to trace the radio back to your vehicle.

To read the similar articles.


Instrument Panel Fuse Block (driver's side)
I suggest check in your Catera Owners Manual the FUSES position 6 and 26 for RADIO.

56f3b2b.jpg

Also, other experts comment that, when servicing the vehicle with the VIN you entered, the following diagnosis might be helpful if the vehicle exhibits the described symptoms.

Condition / Concern:
Radio inoperative with key on, auto door lock feature disabled, a/c compressor does not engage and DTC U1255 stored in the radio. Radio may work in rap or accessory until the door is opened.

Recommendation / Instructions:
Cause: Clamp 15A, fuse #10, 10 amp fuse blown to the BCM/PZM, terminal A11. This fuse is normally powered in run and not during cranking. When this fuse is blown, the BCM acts as though it is in the crank mode with the key on. The BCM turns the radio off via CLASS 2 and inhibits auto door lock operation. The HVAC control head inhibits a/c compressor operation.

CORRECTION:
1. Replace the 10AMP #10 fuse.
2. Check the heater water pump located at the right wheel well area for a leak. Also, check the auxiliary pump located on the left side of the radiator support for a leak. If either pump is leaking, coolant may be dripping onto a connector for this fused circuit which may cause a short to ground condition.
3. If both pumps are okay, install in-line fuses rated less then the fuse in question for each component affected to isolate the failed circuit.

Models: (97, 98, 99, 00, 01 Cadillac Catera)


Hope this help (remember comment and rated this).

May 06, 2010 | 2001 Cadillac Catera

1 Answer

I want to extract my radio code before i remove the old battery and replace it on my 2004 Grand Prix.


The "Theftlock" theft deterrent system is a feature on all base and uplevel radios. There is no need to
program a security code into the radio as in past model years. The theft deterrent system now utilizes
class 2 serial data to determine if the radio is in the appropriate vehicle. Each time the radio receives
the "run" power mode message, it compares the VIN information it has stored to the VIN information
received from a module on the class 2 serial data circuit responsible for transmitting that information.
If a mis-match occurs, the radio display will indicate to the user the radio is locked. Once this takes
place, a DTC will set, the radio will not respond to any button presses and become inoperative. The
two scenarios able to cause this condition are:

  • A radio is installed from another vehicle.
  • A module which communicates on the class 2 serial data circuit which supplies VIN information to the radio is replaced and not properly setup with the correct VIN information for that vehicle.


SOURCE: MITCHELL1

Jan 13, 2010 | 2004 Pontiac Grand Prix

2 Answers

Need radio code for 2001 honda accord lx anti theft lock code to unlock radio


*** Please click the "Was this helpful" Yes thumbs up! ***

FREE and EASY methods to get your Honda radio UNLOCK CODE. (Dealerships usually charge)

Assuming you don't have the Anti-Theft Code and Serial Number that is found on the credit card sized Anti-Theft Radio Identification Card that comes with the vehicle at the time of purchase and is usually found in the glove compartment....

You have FREE options to retrieve that code by phone or on the internet BUT, the RADIO SERIAL NUMBER is REQUIRED (no matter what). (see bottom about removing ERROR E3)

***IF your Honda was made BEFORE 2001 the serial number MAY not be accessible without removing the radio from the vehicle.***

* TO GET THE SERIAL NUMBER (so that you can get the unlock code)

1. Get something to write with and on (you'll need it to write down the serial number)
2. Put the ingnition key in and turn it until your able to turn your radio on (accessories position).
3. Then turn your radio OFF by it's knob/button (but leave the ingition key in place).
4. Hold down the preset buttons 1 and 6 at the same time.
5. Turn the radio on while pressing down both the 1 and 6 buttons.(***IF your Honda doesn't have preset buttons on the radio then hold down the top part of the 'Seek/Skip' button AND the top part of the 'Change Disk' button instead.*** )
6. Write down the 4 numbers you see first and then 4 more that display. These eight numbers are the SERIAL NUMBER. This is NOT your CODE.
7. Make sure your VIN (Vehicle Identification Number) is handy to get the unlock code. (can be found on your insurance card, driver's side door jam, small plate on dashboard by registration and inspection stickers, etc)

* TO GET THE UNLOCK CODE (using the radio Serial Number and VIN)

---Internet option:

1. Go to https://radio-navicode.honda.com/ (YES, it's run BY HONDA and IT'S FREE)
2. Follow on screen instructions (Serial Number and VIN required)
3. Type in the 5 digit code into your radio. This will unlock the radio and return it to a functional state.

-OR-

---Telephone option:

1. Call American Honda Customer Relations (800) 999-1009
2. When the automated message starts 'Press 3' for 'Radio and Navigation Codes'.
3. Tell the Customer Service Agent you need your radio code. (They will ask for your name, your radio's serial number, VIN, etc)
4. When they give you your radio unlock code--WRITE IT DOWN and KEEP IT SAFE!
5. Type in the 5 digit code into your radio. This will unlock the radio and return it to a functional state.

* REMOVING ERROR E3

****If you entered too many wrong codes and got an ERROR E3 message displaying you'll need to do an additional step for even the correct unlock code to work.****

Disconnect your negative battery terminal (or pull the radio fuse out if that's easier for you) for 30 seconds then reconnect it and then the radio will say "CODE" again and you can put in your correct unlock code.

-----------------------------------------------------------------------------------
So what happened to begin with?
See also: http://automobiles.honda.com/information/frequently-asked-questions.aspx?Question=2

If the power from your battery to the Honda radio is interrupted the Anti-Theft feature kicks in, the radio is rendered inoperable and the screen reads 'CODE'. You must enter in the Anti-Theft Radio Unlock Code (usually 5 digits) to make it operational again. You know that much by now.

Sep 09, 2009 | 2001 Honda Accord

1 Answer

Can't get radio to work since battery was replaced


Your going to have to go back to the dealer and they can look up the code by using the vin number of the car to re-set your radio which has an anti theft system.
Most case they'll do it for free where you bought the car as long as it was a Suziki Dealer.
Good luck and hope this helps.

Apr 23, 2009 | 2004 Suzuki Verona

3 Answers

Battery died and anti theft code went into effect


Call your Volvo dealer with the VIN number. They can give you the code and advise if you can reset it yourself or if you will have to take it in.

Jul 19, 2008 | 2000 Volvo S40

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