Toyota Corolla (E170) 2014–2019 Owners Manual / Interior features / Using Bluetooth® devices / Using the steering wheel switches
Toyota Corolla (E170): 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 the hands-free system on/starts a call 3 On-hook switch
Turns the hands-free system off/ends a call/refuses a call

Other materials:
Inspection procedure
1 Check fuse(ecu–ig)
Remove the ecu–ig fuse from the instrument panel j/b.
check the continuity of the ecu–ig fuse.
Ok: continuity
2 Inspect terminal voltage(b)
Remove the cruise control ecu assy with connector still
connected.
turn the ignition switch ...
Using the AUX port
To use the AUX port, connect a portable player, press the “AUDIO” button,
then select “AUX” to display the audio control screen.
Connecting a portable audio player
■Operating portable audio players connected to the multimedia system
The volume can be adjusted using the vehicle' ...
Emission inspection and maintenance (I/M) programs
Some states have vehicle emission inspection programs which include OBD (On
Board Diagnostics) checks. The OBD system monitors the operation of the emission
control system.
If the malfunction indicator lamp comes on
The OBD system determines that a problem exists somewhere in the emission cont ...


