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HOMESERVICE MANUALSTOYOTA2004MATRIX XR, FWD, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 732 (LIGHTING SYSTEM - DIAGNOSIS)PRECAUTION
2004 Toyota Matrix XR, FWD, Standard

Section 732 (Lighting System - Diagnosis): Precaution

2004 Toyota Matrix XR, FWD, StandardSECTION Precaution
WARNING: This page is about a different car, the 2004 Lexus ES 330. However, it is still accessible from the selected car via links, so may be relevant.
  1. PRECAUTION OF HEADLAMP BULB REPLACEMENT 
    Fig 1: Precaution Of Headlamp Bump Replacement
    G01466586Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. When any defects such as deformation, crack, dent, chipping, etc. are identified on the discharge headlamp (especially, on the light control ECU), replace the headlamp with a new one.
    2. Even if the operation seems to be normal, the fail-safe function may be defective.
    3. Since bulbs of the discharge headlamp and halogen bulbs (for headlamps and fog lights) have pressurized gas inside and can easily be broken if scratched or dropped, special care should be taken. When handling, hold the plastic or metal part and do not touch the glass part with bare hands.
    4. Touching the HV socket of the discharge headlamp with the headlamp dimmer switch ON could generate momentary high voltage of 20,000 V and lead to a serious accident.
    5. Never connect a tester to the high voltage socket of the discharge headlamp for measurement, as this leads to a serious accident because of high voltage.
    6. When performing operation related to the discharge headlamp, keep it away from water such as 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 performing operation related to the discharge headlamp, start it after assembling has been completely over and never light up without a bulb installed.
    8. Do not light up the discharge headlamp using another power source except vehicle's.
  2. HEADLIGHT BEAM LEVEL CONTROL ECU INITIALIZING 
    1. Initialize the headlight beam level control ECU.
      1. Initializing the headlight beam level control ECU would be required after work such as items shown in Fig 2 .
        Fig 2: Initializing Headlight Beam Level Control ECU Specifications Chart
        G01466587Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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