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Circuit Inspection

Item	Normal value	Prerequisite condition	(+) Probe	(-) Probe
Trim Resistor Circuit: Resistance (Open)	Approx. below 1Ω	Ignition switch: OFF Sensor, ECM connector: Disconnected	Trim Resistor Terminal (HO2S (S1) connector	Trim Resistor Terminal (ECM connector)

Is the result within specifications?

YES

Go to next step as below.

Repair relevant component(s) as necessary and then go to "VERIFICATION OF VEHICLE REPAIR ".