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Home >> American Motors >> 1986 >> Eagle Limited, Standard >> Repair and Diagnosis >> Engine Performance >> Ignition System - MOTORCRAFT Electronic >> Testing >> Control Unit Power Feed Check

Control Unit Power Feed Check

  1. Disconnect 2-wire connector (Red and White wires) at control unit. Connect negative voltmeter lead to ground and positive lead to Red wire harness connector terminal "F2" and turn ignition switch to "ON" position. Voltage reading should be within .2 volts of battery voltage. If reading is correct, replace control unit and proceed to step 3).
  2. If reading is not correct, locate and repair cause of voltage reduction (corroded connectors, defective ignition switch, etc.). If connectors are repaired and there is spark at coil wire, start engine. If connectors are repaired but no spark at coil wire, replace control unit.
  3. Turn ignition switch to "OFF" position and connect 2-wire connector. Disconnect 4-wire connector and connect an ammeter between Black wire terminal "C1" of control unit connector and ground. Turn ignition switch to "ON" position. Reading should be 0.9-1.1 amps. If reading is not as specified, replace control unit.
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