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

Registering a Bluetooth® device

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    General information
    There are many ecu controlled systems used in the corolla. In general, ecu controlled system are considered to be very intricate and require a high level of technical knowledge and expert skill to troubleshoot. The fact is, however, that if you proceed by inspecting the circuits one by one, ...

    Circuit description
    Refer to dtcs p0100 Dtc no. Dtc detection condition Trouble area P0101 After engine is warmed up, conditions (a) to (d) continue for more than 10 seconds (2 trip detection logic):  engine speed less than 900 rpm  throttle valve fully closed &nbs ...

    Inspection procedure
    Hint: read freeze frame data using the hand-held tester or the obd ii scan tool. Freeze frame data records the engine conditions when a malfunction is detected. When troubleshooting, it is useful for determining whether the vehicle was running or stopped, the engine was warmed up or not, the ...