T100 Pickup 4WD V6-180.5 2959cc 3.0L SOHC (3VZ-E) (1993)
Ignition Coil: Testing and Inspection
INSPECTION
1. Disconnect Ignition Coil connector.
2. Disconnect hIgh-tension Cord.
3. Clean coil and check following:
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Check for cracks or damage.
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Check the terminals for carbon tracks.
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Check the high-tension cord hole for carbon deposits and corrosion.
4. Inspect primary coil resistance. Using an ohmmeter, measure the resistance between the positive (+) and negative (-) terminals.
Primary coil resistance (Cold): 0.36 - 0.55 Ohms
Primary coil resistance (Hot): 0.45 - 0.65 Ohms
If the resistance is not as specified, replace the Ignition Coil.
5. Inspect secondary coil resistance. Using an ohmmeter, measure the resistance between the positive (+) terminal and high-tension terminal.
Secondary coil resistance (Cold): 9.0 - 15.4 k ohms
Secondary coil resistance (Hot): 11.4 - 18.1 k ohms
If the resistance is not as specified, replace the Ignition Coil.
6. Reconnect High-tension Cord.
7. Reconnect Ignition Coil connector.
NOTE: In the above specifications cold and hot refer to the temperature of the coil itself, where cold is -10° - 50°C (14° - 122°F) and hot is 50° -
100°C (122° - 212°F).