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Home >> Ford >> 1988 >> Bronco II 4WD, Standard, M5OD-R1 >> Repair and Diagnosis >> Engine Performance >> Ignition System >> Ignition System - DURA-Spark II >> Testing >> Module-To-Coil Wire
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Module-To-Coil Wire

  1. Disconnect and inspect control module 4-wire connector from coil. Disconnect ignition coil connector from coil. Attach an ohmmeter lead to distributor base and the other to "TACH" terminal of ignition coil connector.
  2. If reading exceeds 100 ohms, replace control module. If reading is 100 ohms or less, inspect wiring harness between control module and ignition coil. After test, connect ignition module and coil connectors.
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