DTC Diagnosis Procedure

WARNING: This page is about a different car, the 2018 Nissan NV3500 HD, 2018 Nissan NV2500 HD, and 2018 Nissan NV1500. However, it is still accessible from the selected car via links, so may be relevant.

CHECK APP SENSOR 1 POWER SUPPLY

Turn ignition switch OFF.
Disconnect accelerator pedal position (APP) sensor harness connector.
Turn ignition switch ON.

Check the voltage between APP sensor harness connector and ground.

+		-	Voltage (Approx.)
APP sensor
Connector	Terminal
E20	2	Ground	5 V

Is the inspection result normal?

YES

GO TO 3.

GO TO 2.

CHECK APP SENSOR 1 POWER SUPPLY CIRCUIT

Turn ignition switch OFF.
Disconnect ECM harness connector.

Check the continuity between APP sensor harness connector and ECM harness connector.

+		-		Continuity
APP sensor		ECM
Connector	Terminal	Connector	Terminal
E20	2	E16	99	Existed

Also check harness for short to ground.

Is the inspection result normal?

YES

Perform the trouble diagnosis for power supply circuit.

Repair or replace error-detected parts.

CHECK APP SENSOR 1 GROUND CIRCUIT

Turn ignition switch OFF.
Disconnect ECM harness connector.

Check the continuity between APP sensor harness connector and ECM harness connector.

+		-		Continuity
APP sensor		ECM
Connector	Terminal	Connector	Terminal
E20	4	E16	100	Existed

Also check harness for short to power.

Is the inspection result normal?

YES

GO TO 4.

Repair or replace error-detected parts.

CHECK APP SENSOR INPUT SIGNAL CIRCUIT

Check the continuity between APP sensor harness connector and ECM harness connector.

+		-		Continuity
APP sensor		ECM
Connector	Terminal	Connector	Terminal
E20	3	E16	97	Existed

Also check harness for short to ground and to power.

Is the inspection result normal?

YES

GO TO 5.

Repair or replace error-detected parts.

CHECK APP SENSOR
Check the APP sensor. Refer to Component Inspection .

Is the inspection result normal?

YES

Check intermittent incident. Refer to Intermittent Incident .

NO

Replace accelerator pedal assembly.