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:
Precaution
1. PRECAUTION OF HEADLIGHT BULB
REPLACEMENT
When any defects such as deformation, crack, dent,
chipping, etc. are identified on the discharge
headlight (especially, on the light control ECU),
replace it with a new one.
Even if the operation seems to be normal, the failsafe
...
Mirror Switch Circuit
DESCRIPTION
A switch signal of the outer mirror switch is transmitted to the
selected outer mirror control ECU by way
of the body ECU. Then, the outer mirror control ECU activates the mirror
motor to move the mirror UP,
DOWN, RIGHT and LEFT in response to the inputs.
HINT:
Th ...
How to proceed with troubleshooting
The intelligent tester can be used at step 2, 5, 8, 11.
1 Vehicle Brought to Workshop
2 Check and Clear DTCs and Freeze Frame Data
HINT:
See page BC-82 and BC-84.
3 Problem Symptom Confirmation
4 Symptom Simulation
5 DTC Check
HINT:
See page BC-82.
6 Problem Symptoms Table
HINT: ...
