Injector circuit
Injector power circuit inspection
1.

Measure the voltage between "Power" terminal of "INJECTOR" harness connector and chassis ground at IG key "ON".

■ Specification : B+

2.

Is voltage within the specification?

▶ Go to "Injector control circuit inspection" procedure as below.

▶ Repair open/poor connection/short to ground between "INJECTOR FUSE 15A" and "Power" terminal of the "INJECTOR" harness connector.

Injector control circuit inspection
3.

Measure the voltage between "Injector Control" terminal of the "INJECTOR" harness connector and chassis ground at IG key "ON".

■ Specification : Approx. 3.5 V

4.

Is voltage within the specification?

▶ Go to "Injector signal waveform inspection" procedure as below.

▶ Repair open/poor connection/short to ground between "Injector Control" terminal of the "INJECTOR" harness connector and "ECM" harness connector.

Injector signal waveform inspection
5.

Select oscilloscope function on the GDS and Connect channel "A" of the VMI to "Injector Control" terminal of the "INJECTOR" harness connector.

6.

Measure the injector signal waveform with IG key "START".

■ Reference signal waveform

7.

Is the injector waveform displayed normally?

▶ Click on "Fuel supply state" item for more details.

▶ Repair open/poor connection/short to ground between "Injector Control" terminal of the "INJECTOR" harness connector and "ECM" harness connector.

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