Ignition Coil Resistance

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.
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

Application	Primary	Secondary
Camry	.36-.55	9000-15,400

Fig 1: Checking Ignition Coil Primary Resistance (CA)

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Fig 2: Checking Ignition Coil Primary Resistance (Ex CA)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 3: Checking Ignition Coil Secondary Resistance (CA)

Fig 4: Checking Ignition Coil Secondary Resistance (Ex CA)