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HOMESERVICE MANUALSTOYOTA2004MATRIX XR, FWD, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 599 (LIGHTING SYSTEM - DIAGNOSIS)HEADLIGHT BEAM LEVEL CONTROL ACTUATOR CIRCUITINSPECTION PROCEDURE
2004 Toyota Matrix XR, FWD, Standard

Inspection Procedure

2004 Toyota Matrix XR, FWD, StandardSECTION Inspection Procedure
WARNING: This page is about a different car, the 2002 Lexus SC 430. However, it is still accessible from the selected car via links, so may be relevant.
  1. INSPECT HEADLAMP UNIT 
    1. Inspect headlight beam level control actuator resistance
      1. Check that continuity exists between terminal 2 and 5.
      2. Check that resistance exists between terminal, as shown in the chart.
    TERMINALS RESISTANCE

    Terminal Resistance (Ω)
    2 - 1 26 - 30
    2 - 3 26 - 30
    2 - 4 26 - 30
    2 - 6 26 - 30
    5 - 1 26 - 30
    5 - 3 26 - 30
    5 - 4 26 - 30
    5 - 6 26 - 30
    Fig 1: Inspecting Headlamp Unit
    G03386661Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPLACE HEADLAMP UNIT 
    2. OK: GO TO NEXT STEP. 
  2. CHECK HARNESS AND CONNECTOR 
    1. Check for open and short circuit in harness and connector between headlamp leveling ECU and headlamp unit.
    1. NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 
    2. OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOM TABLE, SEE  PROBLEM SYMPTOMS TABLE  . 
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.