Toyota Workshop Service and Repair Manuals

Ignition Coil: Specifications

Primary coil resistance (+ to -)

Cold ..................................................................................................................................................................................................  0.36 - 0.55 Ohms
Hot ....................................................................................................................................................................................................  0.45 - 0.65 Ohms

Secondary coil resistance (+ to high-tension)

Cold ..................................................................................................................................................................................................  9.0 - 15.4 k ohms
Hot ..................................................................................................................................................................................................  11.4 - 18.1 k ohms

NOTE: "Cold" and "Hot" in the above specifications express the temperature of the coils themselves. 
Cold is from -10°C (14°F) to 50°C (122°F)
Hot is from 50°C (122°F) to 100°C (212°F)