Ignition Coil Resistance

Disconnect wiring from ignition coil so ignition coil is isolated from the system. Using ohmmeter, check primary resistance between ignition coil positive (+) and negative (-) terminals. See Fig 1-8.
Check secondary resistance between ignition coil positive (+) terminal and high tension wire terminal (coil wire tower). See Fig 3-10. Replace ignition coil if resistance is not within specification. See IGNITION COIL RESISTANCE table.

IGNITION COIL RESISTANCE

Fig 1: Checking Ignition Coil Primary Resistance (Cressida & Supra Non-Turbo)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 2: Checking Ignition Coil Primary Resistance (Land Cruiser)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 3: Checking Ignition Coil Secondary Resistance (Cressida & Supra Non-Turbo)

Fig 4: Checking Ignition Coil Secondary Resistance (Land Cruiser)