Hint:
Use the table below to help determine the cause of the problem symptom. The potential causes of the symptoms are listed in order of probability in the "suspected area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.

How to proceed with troubleshooting
Terminals of ecuAir mix control servo motor (for automatic air conditioning system)
Components
Removal
Remove air conditioning unit
Remove the air conditioning radiator (see page ac-
185).
Remove air mix control servo motor (see
page ac-191)
Inspection
Inspect air mix control servo motor
Inspect the servo motor operation.
Connect ...
Vehicle speed sensor
Description
Refer to the sfi system (see page es-224).
Wiring diagram
Refer to the sfi system (see page es-224).
Inspection procedure
Refer to the sfi system (see page es-224). ...
Checking and replacing
fuses
If any of the electrical components do not operate, a fuse may
have blown. If this happens, check and replace the fuses as necessary.
Vehicles without a smart key system:
turn the engine switch to the “lock” position.
Vehicles with a smart key system:
turn the engine switch off.
Aft ...