For Mexico

P0190 FRP SENSOR

DTC Logic


DTC DETECTION LOGIC







DTC CONFIRMATION PROCEDURE


1. PRECONDITIONING

1.Turn ignition switch OFF and wait at least 10 seconds.
2.Turn ignition switch ON.
3.Turn ignition switch OFF and wait at least 10 seconds.
TESTING CONDITION:


Before performing the following procedure, confirm that battery voltage is 11 V or more at idle.
- GO TO 2.

2. PERFORM DTC CONFIRMATION PROCEDURE

1.Start the engine ON and wait at least 60 seconds.
2.Check DTC or 1st trip DTC.
Is DTC or 1st trip DTC detected?
YES- Proceed to "Diagnosis Procedure" .
NO- INSPECTION END


Diagnosis Procedure


1. CHECK FRP SENSOR POWER SUPPLY-I

1.Turn ignition switch OFF.
2.Disconnect FRP sensor connector.
3.Turn ignition switch ON.
4.Check the voltage between FRP sensor harness connector terminals.





Inspection result normal?
YES- GO TO 6.
NO- GO TO 2.

2. CHECK FRP SENSOR POWER SUPPLY-II

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





Is inspection result normal?
YES- GO TO 4.
NO- GO TO 3.

3. CHECK SENSOR POWER SUPPLY CIRCUIT

1.Turn ignition switch OFF.
2.Disconnect ECM harness connector.
3.Check harness connector for short to power and short to ground, between the following terminals.





Is inspection result normal?
YES- Perform the trouble diagnosis for power supply circuit. Refer to "Diagnosis Procedure" For Mexico.
NO- Repair or replace error-detected parts.

4. CHECK FRP SENSOR GROUND CIRCUIT

1.Turn ignition switch OFF.
2.Disconnect ECM harness connector.
3.Check the continuity between FRP sensor harness connector and ECM harness connector.





Is inspection result normal?
YES- GO TO 5.
NO- Repair or replace error-detected parts.

5. CHECK ECM GROUND CIRCUIT

Check the continuity between ECM harness connector and the ground.





Is inspection result normal?
YES- Check intermittent incident. Refer to "Intermittent Incident" Intermittent Incident.
NO- Repair or replace error-detected parts.

6. CHECK FRP SENSOR SIGNAL CIRCUIT

1.Turn ignition switch OFF.
2.Disconnect ECM harness connector.
3.Check the continuity between FRP sensor harness connector and ECM harness connector.





4.Also check harness for short to ground and to power.
Is inspection result normal?
YES- GO TO 7.
NO- Repair or replace error-detected parts.

7. CHECK FRP SENSOR

Refer to "Component Inspection (Fuel Rail Pressure Sensor)" .
Is inspection result normal?
YES- Check intermittent incident. Refer to "Intermittent Incident" Intermittent Incident.
NO- Repair or replace error-detected parts.


Component Inspection (Fuel Rail Pressure Sensor)


1. CHECK FRP SENSOR

WITH CONSULT
1.Turn ignition switch OFF.
2.Reconnect harness connector disconnected.
3.Start the engine.
4.Select "DATA MONITOR" mode with CONSULT.
5.Check that the "FUEL PRES SEN V" indication.





WITHOUT CONSULT
1.Turn ignition switch OFF.
2.Reconnect harness connector disconnected.
3.Start the engine.
4.Check FRP sensor signal voltage.





Is the inspection result normal?
YES- INSPECTION END.
NO- Replace FRP sensor. Refer to "Exploded View" Exploded View.