Here's how to carry out the Battery reset procedure - (originally posted by Raistlin in the S Type Forum) Have radio code to hand BEFORE disconnecting battery. Restart the clock (where fitted) and set it to the correct time. Enter your radio code or if you do not have it then follow backdoor code below The code only works once you have entered the failed code 3 times Enter any code 3 times so that the display shows "PLEASE WAIT" Simultaneously press ">>" "PTY"