Toyota Corolla (E170): Headlight switch

The headlights can be operated manually or automatically.

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How to proceed with troubleshooting
Hint: carry out troubleshooting in accordance with the procedures on the following page. Here, only the basic procedures are shown. Details are provided in the diagnostics section, showing the most effective methods for each circuit. Confirm the troubleshooting procedures first for the releva ...

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 ...

Mass or volume air flow circuit
Dtc p0100 mass or volume air flow circuit Dtc p0102 mass or volume air flow circuit low input Dtc p0103 mass or volume air flow circuit high input Circuit description The maf (mass air flow) sensor measures the amount of air flowing through the throttle valve. The ecm uses this information ...