Electrical Components Inspection (Cont'd)

EF & EC-348prose procedure

GA16DE engine (header tab).

Engine Temperature Sensor

1
Disconnect engine temperature sensor harness connector.
2
Check resistance as shown in the figure.
SEF536H

Engine Temperature Sensor Resistance

Temperature °C (°F)	Resistance kΩ
20 (68)	2.3 - 2.7
90 (194)	0.24 - 0.26
110 (230)	0.14 - 0.15

20 (68)

Resistance kΩ2.3 - 2.7

90 (194)

Resistance kΩ0.24 - 0.26

110 (230)

Resistance kΩ0.14 - 0.15

If N.G., replace engine temperature sensor.

Ignition Coil

1
Disconnect ignition coil harness connector.
2
Check resistance as shown in the figure.
SEF757K

Ignition Coil Resistance

Terminal	Resistance
① - ②	Approximately 0.9 Ω
① - ③	Approximately 13.0 kΩ

① - ②

ResistanceApproximately 0.9 Ω

① - ③

ResistanceApproximately 13.0 kΩ

If N.G., replace ignition coil.

Power Transistor

1
Disconnect power transistor harness connector.
2
Check power transistor continuity between terminals with a digital tester as shown in the figure.
SEF584K

Power Transistor Continuity

(+) terminal side	Terminal Ⓐ Resistance Ω	Terminal Ⓐ Result	Terminal Ⓑ Resistance Ω	Terminal Ⓑ Result	Terminal Ⓒ Resistance Ω	Terminal Ⓒ Result
Terminal Ⓐ	—	—	∞	O.K.	∞	O.K.
Terminal Ⓐ	—	—	Not ∞ or 0	N.G.	Not ∞ or 0	N.G.
Terminal Ⓐ	—	—	0	N.G.	0	N.G.
Terminal Ⓑ	∞	O.K.	—	—	∞	O.K.
Terminal Ⓑ	Not ∞ or 0	O.K.	—	—	Not ∞ or 0	O.K.
Terminal Ⓑ	0	N.G.	—	—	0	N.G.
Terminal Ⓒ	∞	O.K.	∞	O.K.	—	—
Terminal Ⓒ	Not ∞ or 0	O.K.	Not ∞ or 0	O.K.	—	—
Terminal Ⓒ	0	N.G.	0	N.G.	—	—

Terminal Ⓐ

Terminal Ⓐ Resistance Ω—

Terminal Ⓐ Result—

Terminal Ⓑ Resistance Ω∞

Terminal Ⓑ ResultO.K.

Terminal Ⓒ Resistance Ω∞

Terminal Ⓒ ResultO.K.

Terminal Ⓐ

Terminal Ⓐ Resistance Ω—

Terminal Ⓐ Result—

Terminal Ⓑ Resistance ΩNot ∞ or 0

Terminal Ⓑ ResultN.G.

Terminal Ⓒ Resistance ΩNot ∞ or 0

Terminal Ⓒ ResultN.G.

Terminal Ⓐ

Terminal Ⓐ Resistance Ω—

Terminal Ⓐ Result—

Terminal Ⓑ Resistance Ω0

Terminal Ⓑ ResultN.G.

Terminal Ⓒ Resistance Ω0

Terminal Ⓒ ResultN.G.

Terminal Ⓑ

Terminal Ⓐ Resistance Ω∞

Terminal Ⓐ ResultO.K.

Terminal Ⓑ Resistance Ω—

Terminal Ⓑ Result—

Terminal Ⓒ Resistance Ω∞

Terminal Ⓒ ResultO.K.

Terminal Ⓑ

Terminal Ⓐ Resistance ΩNot ∞ or 0

Terminal Ⓐ ResultO.K.

Terminal Ⓑ Resistance Ω—

Terminal Ⓑ Result—

Terminal Ⓒ Resistance ΩNot ∞ or 0

Terminal Ⓒ ResultO.K.

Terminal Ⓑ

Terminal Ⓐ Resistance Ω0

Terminal Ⓐ ResultN.G.

Terminal Ⓑ Resistance Ω—

Terminal Ⓑ Result—

Terminal Ⓒ

Terminal Ⓐ Resistance Ω∞

Terminal Ⓐ ResultO.K.

Terminal Ⓑ Resistance Ω∞

Terminal Ⓑ ResultO.K.

Terminal Ⓒ

Terminal Ⓐ Resistance ΩNot ∞ or 0

Terminal Ⓐ ResultO.K.

Terminal Ⓑ Resistance ΩNot ∞ or 0

Terminal Ⓑ ResultO.K.

Terminal Ⓒ

Terminal Ⓐ Resistance Ω0

Terminal Ⓐ ResultN.G.

Terminal Ⓑ Resistance Ω0

Terminal Ⓑ ResultN.G.

If N.G., replace power transistor.

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Electrical Components Inspection (Cont'd)

Engine Temperature Sensor

Engine Temperature Sensor Resistance

Ignition Coil

Ignition Coil Resistance

Power Transistor

Power Transistor Continuity

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