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Home >> Ford >> 1982 >> Cutaway 4.9L Eng VIN 9 >> Repair and Diagnosis >> Engine Performance >> Ignition System >> MOTORCRAFT DURA-Spark II Ignition System >> Testing >> Resistance Wire Check

Resistance Wire Check

  1. Disconnect control module 2-wire connector and remove coil connector from coil. Connect ohmmeter leads to "BATT" terminal of coil connector and to harness connector terminal mating with Red control module wire. Read ohmmeter, then reconnect all connectors.
  2. If resistance is 0.8-1.6 ohms, problem is either intermittent or not in ignition system. If resistance was less than 0.8 or more than 1.6 ohms, replace resistance wire.
    Fig 1: Checking Control Module Run And Start Circuits With Voltmeter
    G09360861Courtesy of FORD MOTOR CO.

    Do not let straight pin touch a ground.