DTC P0190-2A: Fuel Rail Pressure Sensor "A" Signal Stuck in Range; DTC P0190-64: Fuel Rail Pressure Sensor "A" Signal Plausibility Failure [06/2020 - 08/2020]: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON.
3. Turn the Techstream on.
4. Enter the following menus: Powertrain / Engine / Trouble Codes.
5. Read the DTCs.

   Powertrain > Engine > Trouble Codes 

   Result

   Result	Proceed to
   DTC P0190-2A or P0190-64 is output	A
   DTC P0190-2A or P0190-64 and P0087-00, P0088-00, P0171-00 or P0172-00 are output
   DTC P0190-2A or P0190-64 and other DTCs are output	B

   HINT: 

   • If DTC P0190-2A or P0190-64 and P0087-00, P0088-00, P0171-00 or P0172-00 are output simultaneously, troubleshoot for DTC P0190-2A or P0190-64 first.
   • If any DTCs other than P0190-2A or P0190-64 are output, troubleshoot those DTCs first.

Result: 

B 

GO TO DTC CHART 

Refer to DIAGNOSTIC TROUBLE CODE CHART [06/2020 - 08/2020]

Result: 

A 

See step  2

1. Check around and beneath the vehicle for fuel leaks, fumes, etc.

   OK

   No fuel leaks present.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

See step  11

Result: 

OK 

See step  3

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON.
3. Turn the Techstream on.
4. Put the engine in Inspection Mode (Maintenance Mode).

   Powertrain > Hybrid Control > Utility 

   Tester Display
   Inspection Mode

5. Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher.
6. Enter the following menus: Powertrain / Engine / Active Test / Control the Target Fuel Pressure Offset / Data List / Coolant Temperature and High Fuel Pressure Sensor.

   Powertrain > Engine > Active Test 

   Active Test Display
   Control the Target Fuel Pressure Offset

   Data List Display
   Coolant Temperature
   High Fuel Pressure Sensor

7. Check the value of the Data List item "High Fuel Pressure Sensor" when the target fuel pressure is increased and decreased using the Active Test.

   Result

   Result	Proceed to
   "High Fuel Pressure Sensor" value follows the change in target fuel pressure	A
   "High Fuel Pressure Sensor" value does not follow the change in target fuel pressure	B

Result: 

B 

See step  10

Result: 

A 

See step  4

1. Disconnect the fuel pressure sensor (for high pressure side) connector.
2. Disconnect the ECM connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   F2-3 (PR) - C45-97 (PR)	Always	Below 1 Ω
   F2-2 (E2) - C45-96 (EPR)	Always	Below 1 Ω
   F2-3 (PR) or C45-97 (PR) - Body ground and other terminals	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

NG 

See step  8

Result: 

OK 

See step  5

1. Replace the fuel pressure sensor (for high pressure side).

   Refer to REMOVAL [02/2019 - 08/2020]

   HINT: 

   Perform "Inspection After Repair" after replacing the fuel pressure sensor (for high pressure side).

   Refer to INITIALIZATION [10/2019 - 08/2020]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  6

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON.
3. Turn the Techstream on.
4. Clear the DTCs.

   Powertrain > Engine > Clear DTCs 

5. Turn the ignition switch off and wait for at least 30 seconds.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  7

1. Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.
2. Enter the following menus: Powertrain / Engine / Trouble Codes.
3. Read the pending DTCs.

   Powertrain > Engine > Trouble Codes 

   Result

   Result	Proceed to
   DTCs are not output	A
   DTC P0190-2A or P0190-64 is output	B

Result: 

A 

END 

Result: 

B 

See step  9

1. Repair or replace the wire harness or connector.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  12

1. Replace the ECM.

   Refer to REMOVAL [02/2019 - 08/2020]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  12

1. Replace the fuel pressure sensor (for high pressure side).

   Refer to REMOVAL [02/2019 - 08/2020]

   HINT: 

   Perform "Inspection After Repair" after replacing the fuel pressure sensor (for high pressure side).

   Refer to INITIALIZATION [10/2019 - 08/2020]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  12

1. Repair or replace the fuel leak point.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  12

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON.
3. Turn the Techstream on.
4. Clear the DTCs.

   Powertrain > Engine > Clear DTCs 

5. Turn the ignition switch off and wait for at least 30 seconds.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  13

1. Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.
2. Enter the following menus: Powertrain / Engine / Trouble Codes.
3. Read the pending DTCs.

   Powertrain > Engine > Trouble Codes 

   OK

   DTCs are not output.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

END