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HOMESERVICE MANUALSTOYOTA2004MATRIX XR, FWD, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 618 (ABS WITH EBD SYSTEM (BOSCH MADE) - DIAGNOSTICS)ABS WARNING LIGHT CIRCUIT (DOES NOT LIGHT UP)INSPECTION 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 2004 Toyota Camry. However, it is still accessible from the selected car via links, so may be relevant.
  1. INSPECT COMBINATION METER ASSEMBLY (ABS WARNING LIGHT) 

    WHEN USING HAND-HELD TESTER 

    1. Connect the hand-held tester to the DLC3 and start the engine.
    2. Select the item "ABS WARN LIGHT" in the ACTIVE TEST and operate the ABS warning light on the hand-held tester.
    3. Check that "ON" and "OFF" of the ABS warning light are shown on the combination meter with the hand-held tester.
    ACTIVE TEST

    Item  Vehicle Condition / Test Details  Diagnostic Note 
    ABS WARN LIGHT Turns ABS warning light ON / OFF Observe combination meter

    Standard: 

    The ABS warning light is turned ON or OFF in accordance with the hand-held tester. 

    WHEN NOT USING HAND-HELD TESTER 

    1. Turn the ignition switch off and disconnect the skid control ECU connector.
    2. Using service wire, connect terminals WA and GND of the skid control ECU harness side connector.
    3. Turn the ignition switch to the ON position.
    4. Check that the ABS warning light goes off.

      Standard: 

      The light is turned ON or OFF in accordance with the connecting condition of terminals GND and WA. 

      Fig 1: Identifying Connector Terminals WA & GND Of Skid Control ECU (Front View)
      G02894193Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. OK: REPLACE BRAKE ACTUATOR ASSY (See  REPLACEMENT  ) 
    2. NG: Go to next step. 
  2. CHECK HARNESS AND CONNECTOR (WA CIRCUIT) 
    1. Disconnect the combination meter connector C7 and the skid control ECU connector S1.
    2. Measure the resistance according to the value(s) in the table below.

      Standard: 

      STANDARD CHART

      Tester Connection Specified Condition
      S1-22 (WA) - C7-10 Below 1 Ω
      S1-22 (WA) - Body ground 10 kΩ or higher
      Fig 2: Identifying Combination Meter Connector C7 And Skid Control ECU Connector S1
      G02894194Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 
    2. OK: REPAIR OR REPLACE COMBINATION METER ASSEMBLY 
RENDER: 1.0x

NO RELATED

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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.