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Home >> Honda >> 1985 >> Prelude Base, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Spark Control System >> Component Testing >> Control Unit Connector

Control Unit Connector

  1. On auto. trans. models, check for voltage at control unit connector (Blue wire) with ignition on. There should be voltage. If there is no voltage, check Blue wire between ignition coil and control unit.
  2. On all models, check for voltage at the Black/Yellow wire with ignition on. There should be voltage. If there is no voltage, check wiring. Check Brown/Black wire for continuity between control unit and ground. There should be continuity.
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