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Power Mirror Switch Circuit: RX300

  1. Disconnect power mirror switch harness connector. Check for continuity between power mirror switch connector terminal No. 10 (White/Black wire) and ground. See WIRING DIAGRAMS . If continuity exists, go to next step. If continuity does not exist, repair wiring harness as necessary.
  2. Measure voltage between power mirror switch connector terminal No. 9 (Pink wire) and ground. With ignition off, voltage should not exist. With ignition on, battery voltage should exist. If voltage is not as specified, repair wiring harness as necessary. If voltage is as specified, check power mirror switch. See POWER MIRROR SWITCH  under COMPONENT TESTS.
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