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Ignition Coil Resistance

  1. Disconnect wiring from ignition coil so ignition coil is isolated from system. Using ohmmeter, check primary resistance between ignition coil positive (+) and negative (-) terminals. See Fig 1.
  2. Check secondary resistance between ignition coil positive (+) terminal and high tension wire terminal (coil wire tower). See Fig 2. Replace ignition coil if resistance is not within specification. See appropriate IGNITION COIL RESISTANCE  table.
IGNITION COIL RESISTANCE (4-CYLINDER) - Ohms @ 68°F (20°C)

Application Primary Secondary
Camry .40-.50 10,200-14,300
Fig 1: Checking Ignition Coil Primary Resistance (Camry 2.2L)
G93A78899Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 2: Checking Ignition Coil Secondary Resistance (Camry 2.2L)
G93F78910Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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