1.Outline
Depending on the country and the vehicle model, a radio unit (ETR) with a cassette tape player equipped with an anti-theft system may be used. “ANTI-THEFT SYSTEM” is printed on the cassette slot door of radio units with this system.
To deter theft of the radio unit, the system is designed so that the radio unit becomes inoperable if it is stolen and detached from the vehicle.
This system operates when the customer inputs a three-digit ID (identification) number. (No ID number is given at the time of shipment. Thus the system is not operative.)
Once the power to the radio is disrupted, it is rendered inoperative until the correct ID code is input again.
Therefore, technicians must find out the ID number from the customer before removing terminals from the battery or radio unit for service.
Some anti-theft type units have a detachable display panel.
2.Indication of LCD (Liquid Crystal Display)
The operating condition of the anti-theft system can be confirmed by the LCD of the radio and cassette tape player when the ignition switch is turned from the LOCK position to the ACC position.
(1)No display (no backlighting)
No ID number is set. The radio or cassette tape player can be operated normally. (when audio system is off)
(2)”SEC” displayed for several seconds
An ID number is set. The radio or cassette tape player can be operated normally.
(3)”SEC” displayed continuously
The ID number is set and battery power to the radio unit (for memory) has been cut off. (ANTI-THEFT SYSTEM operation condition)
If the ID number is input correctly, the radio or cassette tape player can be operated normally.
(4)”Err” displayed
To unset the ANTI-THEFT SYSTEM operation condition, ID number is required to input. But if an error occurs at this time, this is displayed.
(5)”HELP” displayed continuously
The ID number is set and battery power to the radio unit (for memory) has been cut off. (ANTI-THEFT SYSTEM operation condition)
The wrong ID number has been input ten or more times.
In this case, the radio must be repaired at a specified radio service station.
Operation method of ANTI-THEFT SYSTEM differs according to the model. Please refer to the individual Owner’s Manual and Repair Manual.