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Switch Test: MR2

WARNING: This page does not describe the selected car, but rather 11 other vehicles, including the 1992 Toyota Tercel, 1992 Toyota Supra, 1992 Toyota Previa, 1992 Toyota Paseo, and 1992 Toyota MR2. However, it is still accessible from the selected car via links, so may be relevant.
  1. On MR2, defogger switch is located in A/C control assembly. With defogger switch on, ensure continuity exists between terminals No. 10 and 11 of switch. See Fig 1. With switch off, continuity should not exist between terminals No. 10 and 11.
  2. To check switch indicator light operation, connect battery voltage to terminal No. 10 of switch, and ground terminal No. 15. See Fig 1. Ensure defogger switch indicator light is on. If switch indicator light is not on, replace switch.
Fig 1: Identifying Defogger Switch Terminals (MR2)
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