Failing to investigate the cause of the following warnings may lead to the system operating abnormally and possibly cause an accident.
Have the vehicle inspected by your Toyota dealer immediately.


Stop the vehicle immediately.
Follow the correction procedures.On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT ENGINE COOLANT
See page
2. INSPECT ENGINE OIL
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3. INSPECT BATTERY
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4. INSPECT AIR CLEANER FILTER ELEMENT SUB-ASSEMBLY
(a) Remove the air cleaner filter element sub-assembly.
(b) Visuall ...
Horn Circuit
DESCRIPTION
When the theft deterrent system is switched from the armed state to the alarm
sounding state, the main body ECU (driver side junction block assembly) transmits
a signal to cause the horn to sound at intervals of 0.4 seconds.
WIRING DIAGRAM
...
Data List / Active Test
DATA LIST / ACTIVE TEST
1. DATA LIST
HINT:
Using the Techstream to read the Data List allows the values or states of switches,
sensors, actuator and other items to be read without removing any parts. This non-intrusive
inspection can be very useful beca ...