LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Land Rover >> 1994 >> Defender 90 >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Entertainment Systems >> Programming >> Security Code
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Security Code

NOTE: If a push-button is touched accidentally when the ignition is off, a warning tone will sound. Turn the ignition on and the tone will stop.
  1. Obtain 5-digit security code from vehicle owner or manufacturer. Enter security code number using radio (Z111) push-button selectors.
  2. If correct security code is not entered in 3 successive attempts, the radio (Z111) will not accept another entry until the radio has been left on for 1 hour with the ignition on.
  3. When entering the code, be sure to complete the sequence numbering of that 5-digit code, even if you made a mistake. For example; if the correct code number sequence is '43215' and you mistakenly enter '42' instead of '43', continue the code number sequence '215' to complete that entry. A "beep" will sound, "CODE" will still be displayed and the radio will not operate. Re-enter the correct code '43215' and the radio will operate.
  4. If an audible "beep" is heard while entering the code, STOP immediately. Begin entering the code again, starting with the first number of the 5-digit security code.
scientia non olet · About LEMON Manuals