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HOMESERVICE MANUALSTOYOTA2004MATRIX XR, FWD, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1050 (SFI SYSTEM)A/F SENSOR HEATER RELAYINSPECTION
2004 Toyota Matrix XR, FWD, Standard

A/F Sensor Heater Relay: Inspection

2004 Toyota Matrix XR, FWD, StandardSECTION Inspection
WARNING: This page is about a different car, the 2004 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.
  1. REMOVE RELAY BOX COVER 
  2. REMOVE A/F SENSOR HEATER RELAY (Marking: A/F) 
    Fig 1: Removing Relay Box Cover & A/F Sensor Heater Relay
    G02639457Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. INSPECT A/F SENSOR HEATER RELAY 
    1. Inspect the relay continuity.
      1. Using an ohmmeter, check that there is continuity between terminals 1 and 2.

        If there is no continuity, replace the relay.

      2. Check that there is no continuity between terminals 3 and 5.
        3. Fig 2: Checking Continuity Between Terminals 1 + 2 & No Continuity Between Terminals 3 + 5 Using Ohmmeter
        G02639458Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      If there is continuity, replace the relay.

    2. Inspect the relay operation.
      1. Apply battery positive voltage to terminals 1 and 2.
      2. Using an ohmmeter, check that there is continuity between terminals 3 and 5.
        3. Fig 3: Checking Continuity Between Terminals 3 + 5 Using Ohmmeter
        G02639459Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      If there is no continuity, replace the relay.

  4. REINSTALL A/F SENSOR HEATER RELAY 
  5. REINSTALL RELAY BOX COVER 
RENDER: 1.0x

NO RELATED

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