With GST

Check voltage between ECM terminal 102 (PNP switch signal) and ground under the following conditions.

VOLTAGE CONDITIONS CHART

Condition (Gear position)	Voltage V (Known-good data)
P or N position	Approx. 0
Except the above position	BATTERY VOLTAGE (11 - 14V)

Fig 1: Checking Voltage Between ECM Terminal 102 (PNP Switch Signal) And Ground

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