On-Vehicle Inspection

2009 Toyota Sienna XLE, FWDSECTION On-Vehicle Inspection
  1. HEADLIGHT RELAY 
    1. Inspect relay resistance.

      Resistance 

      RESISTANCE REFERENCE

      Condition Tester connection Specified condition
      Always 3-5 10 kΩ or higher
      Apply B+ between the terminal 1 and 2 3-5 Below 1 Ω
      Fig 1: Identifying Headlight Relay Terminals
      G05140837Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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.