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Home >> Jaguar >> 1983 >> XJ-S >> Repair and Diagnosis >> Engine Performance >> Ignition System - LUCAS Electronic >> Testing >> Coil Operation Check

Coil Operation Check

  1. Connect a 12-volt test lamp to negative terminal of ignition coil. See Fig 1. Ground test lamp.
    Fig 1: Checking Ignition Coil Operation Use 12-volt test lamp with ignition turned "ON".
    G29003
  2. Crank the engine, but do not start it. Test lamp should flicker slightly.
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