PR25DD engine

WARNING: This page is about a different variant/trim than selected.

NOTE: Turning the ignition switch ON with FRP sensor harness connector disconnected causes ECM to detect DTC P119C. Be sure to erase the DTC when the diagnosis procedure.

CHECK DTC PRIORITY
If DTC P119C is displayed with DTC P0190, first perform the trouble diagnosis for DTC P0190.

Is applicable DTC detected?

YES

Perform diagnosis of applicable. DTC Description

NO

GO TO 2.

CHECK FUEL RAIL PRESSURE (FRP) SENSOR POWER SUPPLY-1

Turn ignition switch OFF.
Disconnect FRP sensor connector.
Turn ignition switch ON.

Check the voltage between FRP sensor harness connector terminals.

FRP sensor			Voltage (Approx.)
Connector	+	-
	terminal
F116	3	1	5 V

Inspection result normal?

YES

GO TO 8.

GO TO 3.

CHECK FRP SENSOR POWER SUPPLY-2

Check the voltage between FRP sensor harness connector and the ground.

+		-	Voltage (Approx.)
FRP sensor
Connector	Terminal
F116	3	Ground	5 V

Is inspection result normal?

YES

GO TO 6.

GO TO 4.

CHECK FRP SENSOR POWER SUPPLY CIRCUIT FOR OPEN AND SHORT

Turn ignition switch OFF.
Disconnect ECM harness connector.

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

FRP sensor		ECM		Continuity
Connector	Terminal	Connector	Terminal	Continuity
F116	3	F91	43	Existed

Also check harness for short to power.

Is inspection result normal?

YES

GO TO 5.

Repair or replace error-detected parts.

CHECK SENSOR POWER SUPPLY 2 CIRCUIT
Refer to Diagnosis Procedure .

Is inspection result normal?

YES

Perform the trouble diagnosis for ECM power supply circuit. Refer to Diagnosis Procedure .

NO

Repair or replace error-detected parts.

CHECK FRP SENSOR GROUND CIRCUIT FOR OPEN AND SHORT

Turn ignition switch OFF.
Disconnect ECM harness connector.

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

FRP sensor		ECM		Continuity
Connector	Terminal	Connector	Terminal	Continuity
F116	1	F91	45	Existed

Also check harness for short to power.

Is inspection result normal?

YES

GO TO 7.

Repair or replace error-detected parts.

CHECK ECM GROUND CIRCUIT FOR OPEN AND SHORT

Check the continuity between ECM harness connector and ground.

ECM		Ground	Continuity
Connector	Terminal
F91	5	Ground	Existed
	65
F90	69
	70
E31	157
	159
	162

Also check harness for short to power.

Is the inspection result normal?

YES

INSPECTION END

Repair or replace error-detected parts.

CHECK FRP SENSOR SIGNAL CIRCUIT FOR OPEN AND SHORT

Turn ignition switch OFF.
Disconnect ECM harness connector.

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

FRP sensor		ECM		Continuity
Connector	Terminal	Connector	Terminal	Continuity
F116	2	F91	44	Existed

Also check harness for short to ground and to power.

Is inspection result normal?

YES

GO TO 9.

Repair or replace error-detected parts.

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

Is inspection result normal?

YES

INSPECTION END

NO

Repair or replace error-detected parts.