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Heated Mirror Test

  1. Remove front door trim panel. See FRONT DOOR TRIM PANEL  under REMOVAL & INSTALLATION. Disconnect power mirror connector. Using an ohmmeter, check for continuity between ground and terminal No. 6 (Black wire) at power mirror wiring harness connector. See Figure . If continuity exists, go to next step. If continuity does not exist, repair open in Black wire ground circuit.
  2. Connect negative battery cable. Turn ignition on. Turn rear window defogger on. Measure voltage between ground and terminal No. 5 at power mirror wiring harness connector. If battery voltage is present, go to next step. If battery voltage is not present, repair open circuit.
  3. Check for continuity between terminals No. 5 and 6 at power mirror connector. If continuity does not exist, replace power mirror. If continuity exists, check resistance between terminals No. 5 and 6 at power mirror connector. With ambient temperature at 70°F (21°C), resistance should be 10-16 ohms. If resistance is not as specified, replace power mirror. If resistance is as specified, no problem is indicated at this time. Test is complete.
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