FixVault
Home › Lincoln › 1981 › Mark VI Base, 2D Sedan › Repair and Diagnosis › Engine Performance › Ignition System › MOTORCRAFT EEC III Ignition System › Testing › "Tach" Wire Continuity Check

"Tach" Wire Continuity Check

  1. Connect one ohmmeter lead to harness terminal that mates with control module green wire. Connect other end to coil "TACH" wire in coil connector (do not remove).
  2. If less than 1 ohm, wire is OK. Proceed to next test. If more than 1 ohm, service open wire between control module harness connector and "TACH" terminal of coil.
About FixVault