Theft Warning System Operation

The theft warning system is triggered by
^ opening a door or the trunk lid without using the key
^ opening the hood
^ tampering with the key cylinder in the door or trunk lid.
Once the theft warning system has been activated, if the theft warning control unit receives a ground signal at terminal (5), terminal (14) or terminal (15) (as described under THEFT WARNING SYSTEM ACTIVATION), the theft warning system will be triggered. Also, when one of the following signals is received at the theft warning control unit, the system will be triggered. The headlamps flash and the horn sounds intermittently, and the starting system is interrupted.
When a door key cylinder switch has been tampered with, theft warning control unit terminal (6) receives a ground signal
^ from terminal (3) of the front door key cylinder switch LH or RH
^ through body grounds (M1) and (M60).
When the trunk lid key cylinder switch has been tampered with, theft warning control unit terminal (6) receives a ground signal
^ from terminal (2) of the trunk lid key cylinder switch
^ through body grounds M101 and M165.
If the theft warning system is triggered, ground is supplied
^ from terminal (4) of the theft warning control unit
^ to theft warning relay-2 terminal (2).
With power and ground supplied, power to the clutch interlock relay (M/T models for U.S.A.) or inhibitor relay (A/T models) or starter motor (M/T models for Canada) is interrupted. The starter motor will not crank and the engine will not start.
Power is supplied at all times
^ through 15 A fuse (No. (18) located in fusible link and fuse box)
^ to theft warning horn relay terminals (1) and (3),
^ to theft warning relay-1 terminal (1) and
^ to horn relay terminal (2).
Power is supplied at all times
^ through 15 A fuse (No. (27) , located in fusible link and fuse box)
^ to theft warning relay-1 terminal (6).
Power is supplied at all times
^ through 15 A fuse (No. (28) ,located in the fusible link and fuse box)
^ to theft warning relay-1 terminal (3)
When the theft warning system is triggered, ground is supplied intermittently
^ from terminal (12) of the theft warning control unit
^ to theft warning horn relay terminal (2) and
^ to theft warning relay-1 terminal (2), and
^ from theft warning horn relay terminal (6)
^ to horn relay terminal (1). <--
The headlamps flash and the horn sounds intermittently.
The alarm automatically turns off after 2 or 3 minutes but will reactivate if the vehicle is tampered with again.