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Home >> Toyota >> 1994 >> MR2 2.2 S, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Basic Testing >> Ignition Checks >> Ignition Coil Resistance

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 and Fig 2.
  2. Check secondary resistance between ignition coil positive (+) terminal and high tension terminal (coil wire tower). See Fig 3 and Fig 4. Replace ignition coil if resistance is not within specification. See appropriate IGNITION COIL RESISTANCE  table.
IGNITION COIL RESISTANCE - Ohms @ 68°F (20°C)

Application Primary Secondary
MR2 .36-.55 9000-15,400
Fig 1: Checking Ignition Coil Primary Resistance (Non-Turbo)
G94I44576Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 2: Checking Ignition Coil Primary Resistance (Turbo)
G93I78905Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 3: Checking Ignition Coil Secondary Resistance (Non-Turbo)
G94I44584Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 4: Checking Ignition Coil Secondary Resistance (Turbo)
G93B78916Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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