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Test 46A - Open Mic Sensor Circuits

NOTE: For connector terminal identification, see CONNECTOR IDENTIFICATION  . For appropriate wiring diagram, see WIRING DIAGRAMS  section at the end of this article. Perform TEST VER-1B after each repair.
CAUTION: Always turn ignition off prior to disconnecting or connecting any module connector.
  1. Turn ignition off. Disconnect Body Control Module (BCM) Natural connector and MIC connector. Check connectors, and clean or repair connectors as necessary. If connectors are okay, go to next step.
  2. Using an external ohmmeter, check resistance of Orange/Dark Blue wire between MIC connector terminal No. 3 and BCM Natural connector terminal No. 5. If resistance is more than 5 ohms, repair open Orange/Dark Blue wire. If resistance is less than 5 ohms, go to next step.
  3. Check resistance of Light Blue wire between MIC connector terminal No. 5 and BCM Natural connector terminal No. 6. If resistance is more than 5 ohms, repair open Light Blue wire. If resistance is less than 5 ohms, replace BCM.
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