Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Cruise control system / Diagnosis circuit
Toyota Corolla (E120): Diagnosis circuit
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Starting & charging
Preparation
Sst
Recomended tools
Equipment
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Using the steering wheel switches
The steering wheel switches can be used to operate a connected cellular phone
or portable digital audio player (portable player).
Operating a Bluetooth® phone using the steering wheel switches
1 Volume
The voice guidance volume cannot be adjusted using these buttons.
2 Off-hook switch
Turns ...
Key confinement prevention function does not work
properly (unlock warning switch circuit)
Circuit description
The unlock warning switch turns on when the key is inserted in the ignition
key cylinder and the door courtesy
switch turns on when the driver’s door is opened, and the integration relay
monitors both switches conditions.
According to these switches conditions, the int ...