Toyota Sienna Service Manual: Engine immobiliser
Security horn assembly
INSPECTION
1. INSPECT SECURITY HORN ASSEMBLY
Check operation of the horn.
Standard
If the result is not a ...
Engine immobiliser system
PARTS LOCATION
SYSTEM DESCRIPTION
The engine immobiliser system has been designed to prevent
the vehicle from being stolen. This system uses a
transponder key ECU that stores the key code of t ...
Other materials:
IG Power Source Circuit
DESCRIPTION
The main power source is supplied to the A/C amplifier when the ignition
switch is turned to the ON
position.
The power source is used for operating the A/C amplifier and servo motor, etc.
WIRING DIAGRAM
INSPECTION PROCEDURE
HINT:
Start the engine before inspection. Check ...
Disassembly
1. REMOVE FRONT BUMPER ENERGY ABSORBER
2. REMOVE FRONT BUMPER REINFORCEMENT SUBASSEMBLY
Remove the 6 bolts and the front bumper
reinforcement sub-assembly.
3. REMOVE FRONT BUMPER SIDE SUPPORT LH
Remove the screw.
Disengage the 2 clips and remove the front bumper
side suppor ...
Oxygen (A/F) Sensor Signal Stuck
HINT:
Although the DTC titles say oxygen sensor, these DTCs relate to the
Air-Fuel Ratio (A/F) sensor.
Sensor 1 refers to the sensor mounted in front of the Three-Way
Catalytic Converter (TWC) and
located near the engine assembly.
DESCRIPTION
The A/F sensor generates a voltage* ...
