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Component Function Check

PERFORM COMPONENT FUNCTION CHECK

Without CONSULT-III

Start engine and warm it up to the normal operating temperature.
Turn ignition switch OFF and wait at least 10 seconds.
Turn ignition switch ON.
Turn ignition switch OFF and wait at least 10 seconds.
Start engine and keep the engine speed between 3, 500 and 4, 000 RPM for at least 1 minute under no load.
Let engine idle for 1 minute.
Open engine hood.
Check the voltage between ECM harness connector terminals under the following conditions.

Fig 1: Checking Voltage Between ECM Harness Connector Terminals

G05869840

Courtesy of NISSAN MOTOR CO., U.S.A.

VOLTAGE SPECIFICATION

DTC	ECM			Condition	Voltage (V)
	Connector	+	-
	Connector	Terminal	Terminal
P0420	F13	33 [HO2S2 (bank 1) signal]	35 (Sensor ground)	Keeping engine speed at 2, 500 RPM constant under no load	The voltage fluctuation cycle takes more than 5 seconds. 1 cycle: 0.6 - 1.0 → 0 - 0.3 → 0.6 - 1.0
P0430	F13	34 [HO2S2 (bank 2) signal]	35 (Sensor ground)	Keeping engine speed at 2, 500 RPM constant under no load

Is the inspection result normal?

YES: INSPECTION END

NO: Go to "DIAGNOSIS PROCEDURE ".