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.
- 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 (V6) - Ohms @ 68°F (20°C)
| Application | Primary | Secondary |
|---|---|---|
| 4Runner | .36-.55 | 9000-15,400 |