Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1994 Land Rover Defender 90FACTORY OEM SERVICE PROCEDURE
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.
- Obtain 5-digit security code from vehicle owner or manufacturer. Enter security code number using radio (Z111) push-button selectors.
- 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.
- 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.
- 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.
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
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