Toyota Corolla (E170): Instrument panel light control

When the tail lights are on, the brightness of the instrument panel lights can be adjusted. (On vehicles with an automatic light control system, the instrument panel lights can be adjusted when the surrounding area is dark and the tail lights are on.) The brightness of the clock light can be adjusted regardless of whether the tail lights are on or off.

1 Brighter
2 Darker

Trip information

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    Pre–check
    1. Diagnosis system Release the parking brake lever.  check the warning lights. When the ignition switch is turned on, check that the abs warning light and brake warning light goes on for 3 sec. Hint: when the parking brake is applied or the level of the brake fluid is low, the ...

    Switches
    Instrument panel light control dial Automatic High Beam switch Heated steering wheel switch* Windshield wiper de-icer switch* Outside rear view mirror switch Door lock switches Power window switches Window lock switch *: If equipped Meter control switches Paddle shift switches*1 C ...

    Circuit description
    The actuator motor is operated by signals from the cruise control ecu assy. Acceleration and deceleration signals are transmitted by changes in the duty ratio (see below). Duty ratio: the duty ratio is the ratio of the period of continuity in one cycle. For example, if a is the period of co ...