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Lighting System: Precaution: Precaution

WARNING: This page is about a different car, the 2011 Toyota Avalon. However, it is still accessible from the selected car via links, so may be relevant.
  1. GENERAL PRECAUTION 
    1. While using the battery during inspection, do not bring the positive and negative tester probes too close to each other as a short circuit may occur.
  2. PRECAUTION FOR DISCONNECTING THE BATTERY CABLE 
    NOTE:

    When disconnecting the negative (-) battery terminal, initialize the following systems after the terminal is reconnected.

    System Name See procedure
    Power Window Control System Refer to INITIALIZATION
    Sliding Roof System Refer to INITIALIZATION
  3. PRECAUTION FOR HEADLIGHT BULB REPLACEMENT (HALOGEN BULB) 
    1. Halogen bulbs have pressurized gas inside and require special handling. They can burst if scratched or dropped. Hold the bulb only by its plastic or metal case. Don't touch the glass part of a bulb with bare hands.
  4. PRECAUTION FOR HEADLIGHT BULB REPLACEMENT (HID BULB) 
    1. When any defects such as deformations, crack, dent, chipping, etc. are identified on the HID headlight (especially on the light control ECU), replace it with a new one.
    2. Even if the operation of the HID system is normal, always replace damaged parts as the fail-safe function may not be operating correctly.
    3. Be careful not to scratch or drop bulbs of the HID headlight and halogen bulbs (for high beam headlights and fog lights) as they have pressurized gas inside and can be easily broken.
    4. Touching the high voltage socket of the HID headlight with the headlight dimmer switch ON could generate momentary high voltage of 20,000 V and lead to a serious injury.
    5. Never connect a tester to the high voltage socket of the HID headlight for measurement, as this may lead to a serious injury because of high voltage.
    6. When servicing the HID headlight, keep it away from water including rain, turn off the light control switch, and disconnect the battery terminal and the connector of the light control ECU in advance to avoid electric shock.
    7. When operating the HID headlight, operate it after assembling is completed and never turn on the lights without a bulb installed.
    8. Do not turn on the HID headlight using another power source except the vehicle's.
  5. EXPRESSIONS OF IGNITION SWITCH 
    1. The type of ignition switch used on this model differs according to the specifications of the vehicle.

      The expressions listed in the table below are used in this service information.

      Switch Type Ignition Switch (position) Engine Switch (condition)
      Expression Ignition Switch off LOCK Off
      Ignition Switch on (IG) ON On (IG)
      Ignition Switch on (ACC) ACC On (ACC)
      Engine Start START Start
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