Section 571 (Fog Light System): Inspection

2004 Toyota Matrix XR, FWD, StandardSECTION Inspection
WARNING: This page is about a different car, the 2003 Toyota Sequoia. However, it is still accessible from the selected car via links, so may be relevant.
  1. INSPECT FOG LIGHT SWITCH CONTINUITY 
    FOG LIGHT SWITCH CONTINUITY SPECIFICATIONS

    Switch Position Tester Connection Specified Condition
    OFF - No Continuity
    ON 10 - 11 Continuity

    If continuity is not as specified, replace the switch.

    Fig 1: Identifying Fog Light Switch And Connector Terminals
    G02852108Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. INSPECT FOG LIGHT RELAY CONTINUITY 
    FOG LIGHT RELAY CONTINUITY SPECIFICATIONS

    Condition Tester Connection Specified Condition
    Constant 1 - 2 Continuity
    Constant 3 - 5 No Continuity
    Apply B+ Between Terminals 1 And 2. 3 - 5 Continuity

    If continuity is not as specified, replace the relay.

    Fig 2: Identifying Fog Light Relay Terminals
    G02852109Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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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.