Toyota Camry Manual page 1870

Theft Deterrent Horn Circuit
CIRCUIT DESCRIPTION
When the theft deterrent system is activated, the relay in the ECU turns ON and OFF cycles of approximately
0.2 sec., causing the theft deterrent horn to blow (See the wiring diagram below).
In this condition, if any of the following operations is done, the relay in the ECU turns OFF, thus stopping
the theft deterrent horn from blowing:
(1) Unlock the front LH or RH door with key.
(2) Turn the ignition switch to ACC or ON position.
(3) Unlock the doors with the wireless door lock control system.
(4) Wait for approximately 60 seconds.
(5) Push the panic switch of the wireless door lock control system.
WIRING DIAGRAM
FL BLOCK
1
1
F4 F6
B–G
FL MAIN
Battery
DIAGNOSTICS
E/G Room J/B No.2
HORN
1 3
2F
2A
B
– THEFT DETERRENT SYSTEM
HORN
4
2 1
IK1
W W–L
Author :
Theft Deterrent ECU
5 9
SH
T3
IG3
W–L
W–L
Date :
DI–843
DI06V–06
I00261
1078