Diagnosis Procedure

WARNING: This page is about a different car, the 2018 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.

CHECK AIR FUEL RATIO (A/F) SENSOR 1 POWER SUPPLY

Disconnect A/F sensor 1 harness connector.
Turn ignition switch ON.

Check the voltage between A/F sensor 1 harness connector and ground.

DTC	+			-	Voltage
	A/F sensor 1
	Bank	Connector	Terminal
P0132	1	F12	1	Ground	Battery voltage
P0152	2	F61	1

Is the inspection result normal?

YES

GO TO 3.

GO TO 2.

CHECK AIR FUEL RATIO (A/F) SENSOR 1 POWER SUPPLY CIRCUIT

Turn ignition switch OFF.
Disconnect IPDM E/R harness connector.
Check the continuity between A/F sensor 1 harness connector and IPDM E/R harness connector.

DTC	A/F sensor 1			IPDM E/R		Continuity
DTC	Bank	Connector	Terminal	Connector	Terminal	Continuity
P0132	1	F12	1	F50	52	Existed
P0152	2	F61	1	F50	53	Existed

Is the inspection result normal?

YES

Perform the trouble diagnosis for power supply circuit.

Repair or replace error-detected parts.

CHECK A/F SENSOR 1 INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

Turn ignition switch OFF.
Disconnect ECM harness connector.

Check the continuity between A/F sensor 1 harness connector and ECM harness connector.

DTC	A/F sensor 1			ECM		Continuity
	Bank	Connector	Terminal	Connector	Terminal
P0132	1	F12	3	F14	66	Existed
			4		67
P0152	2	F61	3		76
			4		77

Check the continuity between A/F sensor 1 harness connector and ground, or ECM harness connector and ground.

DTC	A/F sensor 1			Ground	Continuity
	Bank	Connector	Terminal
P0132	1	F12	3	Ground	Not existed
			4
P0152	2	F61	3
			4

DTC	ECM		Ground	Continuity
	Connector	Terminal
P0132	F14	66	Ground	Not existed
		67
P0152		76
		77

Also check harness for short to power.

Is the inspection result normal?

YES

INSPECTION END

Repair open circuit, short to ground or short to power in harness or connectors.