Toyota Camry Manual page 1884

3 Check harness and connector between theft deterrent ECU and key lock and un-
lock switch, key lock and unlock switch and body ground (See page IN–31).
OK
Check and replace theft deterrent ECU.
DIAGNOSTICS – THEFT DETERRENT SYSTEM
NG Repair or replace harness or connector.
*1: When there is a malfunction that the theft deterrent system
cannot be set, proceed to the next numbered circuit inspection
shown on problem symptoms table (See page DI–837).
Author : Date :
DI–857
1092