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Ignition Coils

Turn ignition off. Disconnect wires from ignition coil. Using an ohmmeter, check primary coil resistance on ignition coil. See Fig 1. For resistance specifications, see IGNITION COIL RESISTANCE  table.

IGNITION COIL RESISTANCE

Application (1) Ohms
ES300 
Primary Circuit .30-.60
Secondary Circuit 9000-15,000
GS300 
Primary Circuit .21-.33
Secondary Circuit 6400-11,000
LS400 
Primary Circuit .36-.55
Secondary Circuit 9000-15,000
SC300 
Primary Circuit .20-.30
Secondary Circuit 6000-11,000
SC400 
Primary Circuit .40-.50
Secondary Circuit 10,000-14,000
(1) Specification is with ignition coil cold.
Fig 1: Ignition Coil Terminal ID (LS400 Shown; Others Are Similar)
G90A18861Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002