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Your code 21 is just telling you that your left sidelight is out. The shaking and juddering is a different issue and needs a pro grade scan tool computer to see which sensor needs replacing.
21
Failure of left sidelight.
Make sure ignition is switched on, hold down button AS and turn on the stereo. Wait for the beep, then release button AS. Display should now have 4 dashes ----. Enter correct code using the radio preset buttons 1 to 4. Once code is entered, press and hold down button AS again until code is either confirmed or denied. WARNING - you only have a max of 10 attempts to get it right, but if still no luck after the 8th attempt, STOP and contact a Vaux dealer.
or you could buy something from these folks: http://www.m-99.co.uk/Car_Radio_Decode/car_radio_decode.html Car radio code calculator Decode Serial Digital mileage adjustment...
If factory installed put on radio.The safe sign will appear.There should be a 4 digit code for the radio.Punchin the code using numbers 1-4.Press repeatedly from number 1 till for the fist digit number 2 for the second digit etc.when you have punched the code in the safe sign will appear.Briefly press loud /expert then wait a few seconds your radiio should then display .Look for your favourite channels .If you punch in the code wrong there is a waiting period.First attempt wait 21 seconds ,second attempt1.5 minutes 3rd attempt5.5 minutes...4th attempt22 mins.5th attempt1.5 hrs. If this fails ,disconnect battery and start again
you need the 4 digit code for the radio. sometimes you luck and it is still on the radio top but you need to take it out to find out if not it may be in the radio manual been written down falling that you need to know if it is the original radio for the car if it is you can get a car pass from vauxhall and it will have the code for the radio ecu alam etc. then but its can cost a bit but is a good idea to get the code.as after awile you may need a new ecu or somthing and the code will help pair the systerms.
To get your Radio Code Mr JEFFERSON, as it had happened to my customer with a Vauxhall Astra is to apply to main Dealer by giving the Registration or Chassis Number and as I remember He paid in Cyprus the amount of 17 euros and he gets it. I do not believe is very expensive. When you get the Code write it and keep it somewhere safe for future use.
You need to remove the radio out from the dashboard using special removal VW radio Gamma keys. In the rear face of the unit is placed a fuse (red color) = 10 Amp. Replace blown fuse with a new one. Then you will need to exit the radio out from the security "SAFE" mode.
IMPORTANT NOTE: You must have the security anti-theft code for your VW radio from the car manufacturer, or from an Volkswagen dealer! You can find the radio code at: http://www.radio-code.co.uk/ The sequence of programming for a 2000 VW Beetle radio Gamma is: 1. Push simultaneous "SCAN" and "RDM" keys until on the screen will appear "1000" displayed. 2. Release keys. No more push on "SCAN" and "RDM" keys because otherwise number "1000" will be considered as first safe code attempt. For example: we have the security code "5079". Then: 3. By the no.# 1 key you will set up the first safe code digit. Push 5 times on the no.# 1 button. The "5" number will be setted. 4. By the no.# 2 key you will set up the second safe code digit. Push 10 times on the no.# 2 button. The "0" number will be setted. 5. By the no.# 3 key you will set up the third safe code digit. Push 7 times on the no.# 3 button. The "7" number will be setted. 6. By the no.# 4 key you will set up the four-th safe code digit. Push 9 times on the no.# 4 button. The "9" number will be setted. 7. Then push again simultaneous "SCAN" and "RDM" keys for confirm this safe code. On the screen will be displayed "SAFE" notice. Release keys! For few seconds a radio frequence will be displayed. The radio is now ready for use!
The sequence of Audi radio programming is: 1. Push simultaneous "SCAN" and "RDS" keys until on the screen will appear "1000" displayed. 2. Release keys. No more push on "SCAN" and "RDS" keys because otherwise number "1000" will be considered as first safe code attempt. For example: we have the security code "5079". Then: 3. By the no.# 1 key you will set up the first safe code digit. Push 5 times on the no.# 1 button. The "5" number will be setted. 4. By the no.# 2 key you will set up the second safe code digit. Push 10 times on the no.# 2 button. The "0" number will be setted. 5. By the no.# 3 key you will set up the third safe code digit. Push 7 times on the no.# 3 button. The "7" number will be setted. 6. By the no.# 4 key you will set up the four-th safe code digit. Push 9 times on the no.# 4 button. The "9" number will be setted. 7. Then push again simultaneous "SCAN" and "RDS" keys for confirm this safe code. On the screen will be displayed "SAFE" notice. Release keys! For few seconds a radio frequence will be displayed. The radio is now ready for use!
pulled old battery and did engine work...
installed new battery and now the radio shows "loc" on display..
radio is locked out ..
need the 4 digit code to re in act the radio.
please advise
jdw
how to reset code 82 on vauxhall astra
got error code u0001 on a 04 Vauxhall astra
cable seems stretched and needs replacing
need code for radio
Discontented the battery the radio needs a code to restart
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