Audio Anti-Theft System - Audio Functions Inoperative
90lexus03 AUDIO 003 06-22-90 LS400, ES250Title AUDIO ANTI-THEFT SECURITY SYSTEM
An Audio Anti-Theft Security System has been incorporated in all Lexus audio units. If battery power is lost after a Security Code ID Number has been entered, the audio unit will be disabled and the correct security code ID number will be needed for reactivation.
SECURITY SYSTEM ACTIVATION:
The Audio Anti-Theft Security System is activated by entering a threedigit security code ID number. (Please refer to the Owner's Manual audio section).
IDENTIFYING ACTIVATED SECURITY SYSTEM:
To identify whether an audio unit has its Anti-Theft Security System activated, perform the following:
1) Observe the unit's LED display while turning the ignition key from "Lock" to "ACC". If "SEC" displays before the normal radio display (approximately 1 second) the security system has been activated.
SERVICE PRECAUTIONS:
If the Audio Anti-Theft Security System is activated, take the following precautions:
1) Obtain the three-digit security code ID number from the customer.
2) Deactivate the Audio Anti-Theft Security System before disconnecting the battery, removing the radio/dome fuses, or removing the audio unit (See Owner's Manual).
NOTE:
1) Disconnecting the battery power to an audio unit with an AntiTheft Security System will disable the audio unit.
2) If the battery power is reconnected to this audio unit, "SEC" will continuously display regardless of whether the audio unit is ON/OFF.
WRONG IDENTIFICATION NUMBER INPUT:
When an audio unit has "SEC" continuously displayed, the three-digit security code ID number must be entered to reactivate the audio unit (See Owner's Manual).
If the wrong identification number is entered, the following could occur:
1) The audio unit will display "1 Err". The number of incorrect attempts is displayed next to "Err".
2) After the fourth attempt, the display will be blank and the audio unit will be in a security code lock-out. Only an authorized service center will be able to reactivate the audio unit.
PROCEDURE::
Use the following procedure to identify if an inoperative audio unit is already in Security Code Lock-Out.
Customer Complaint: all audio functions inoperative (dead unit)