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HOMESERVICE MANUALSTOYOTA2004MATRIX XR, FWD, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 732 (LIGHTING SYSTEM - DIAGNOSIS)INITIAL SET CONTROL FUNCTION OPERATES, BUT HEADLAMP AIMING DOES NOT OPERATE (WARNING LAMP GOES OFF)WIRING DIAGRAM
2004 Toyota Matrix XR, FWD, Standard

Initial Set Control Function Operates, But Headlamp Aiming Does Not Operate (Warning Lamp Goes Off): Wiring Diagram

2004 Toyota Matrix XR, FWD, StandardSECTION Wiring Diagram
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.
Fig 1: Initial Set Control Function Operates, But Headlamp Aiming Does Not Operate (Warning Lamp Goes Off)
G01466668Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  1. CHECK INITIALIZE 
    1. Start engine.
    2. Check that initial set control function of both headlamps operates.
      Fig 2: Checking Initial Set Control Function Of Both Headlamps Operates
      G01466669Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      B: Go to step   3 

      A: Go to Next Step 

  2. CHECK HEAD LIGHT UNIT (HEADLAMP LEVELING MOTOR) 
    1. Inspect headlamp leveling motor resistance.
      1. Check that there is continuity between terminal 2 and 5.
        Fig 3: Checking Continuity Between Terminals 2 & 5
        G01466671Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. Check that there is resistance between terminals as shown in Fig 4 .
      Fig 4: Checking Head Light Unit (Headlamp Leveling Motor) Resistance Chart
      G01466670Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK: Go to step   4 

      NG: REPLACE HEAD LIGHT UNIT (LEVELING MOTOR) 

  3. CHECK HEADLAMP LEVELING ECU ASSY 
    1. Check signal waveform.
      1. RH:

        Using an oscilloscope, check signal waveform between terminal H14-16 (RH1), H14- 15 (RH2), H14-4 (RH3), H14-13 (RH4) and body ground.

      2. LH:

        Using an oscilloscope, check signal waveform between terminal H14-3 (LH1), H14-2 (LH2), H14-5 (LH3), H14-14 (LH4) and identifying body ground.

        Standard: Signal waveform 2 

      3. Signal waveform 2
      Fig 5: Identifying Signal Waveform 2
      G01466673Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
RENDER: 1.0x

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

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