- DTC judgment completed
- System normal
| Last Modified: 07-31-2024 | 6.11:8.1.0 | Doc ID: RM100000001P7DO |
| Model Year Start: 2021 | Model: Corolla Hatchback | Prod Date Range: [06/2020 - 09/2022] |
| Title: M20A-FKS (ENGINE CONTROL): SFI SYSTEM: P01902A,P019064; Fuel Rail Pressure Sensor "A" Signal Stuck in Range; 2021 - 2022 MY Corolla Corolla Hatchback [06/2020 - 09/2022] | ||
|
DTC |
P01902A |
Fuel Rail Pressure Sensor "A" Signal Stuck in Range |
|
DTC |
P019064 |
Fuel Rail Pressure Sensor "A" Signal Plausibility Failure |
DESCRIPTION
Refer to DTC P019011.
Click here
![2020 - 2023 MY Corolla Corolla Hatchback [03/2019 - 03/2023]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: P019011; Fuel Rail Pressure Sensor "A" Circuit Short to Ground+](/t3Portal/stylegraphics/info.gif)
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
MIL |
Memory |
Note |
|---|---|---|---|---|---|---|
|
P01902A |
Fuel Rail Pressure Sensor "A" Signal Stuck in Range |
When target high pressure side fuel pressure changes, the change in fuel pressure sensor value is abnormal (2 trip detection logic). |
|
Comes on |
DTC stored |
|
|
P019064 |
Fuel Rail Pressure Sensor "A" Signal Plausibility Failure |
Although engine has been stopped and left as is for a long time, high pressure side fuel pressure is higher or lower than threshold (2 trip detection logic). |
|
Comes on |
DTC stored |
|
MONITOR DESCRIPTION
Fuel Pressure Sensor Stuck Monitor
If the fuel pressure sensor (for high pressure side) value does not follow the change in the target high pressure side fuel pressure, it is judged as a malfunction. If this malfunction is detected in 2 consecutive driving cycles, the ECM will illuminate the MIL and store DTC P01902A.
Fuel Pressure Sensor Correlation Monitor with Barometric Pressure
If the fuel pressure sensor (for high pressure side) value is less than or higher than the threshold value when a cold start is performed after the engine has been warmed up and then stopped, it is judged as a malfunction has occurred. If this malfunction is detected for 2 consecutive driving cycles, the ECM will illuminate the MIL and store DTC P019064.
MONITOR STRATEGY
|
Related DTCs |
P0191: Fuel pressure sensor rationality (stuck monitor) P0191: Fuel pressure sensor rationality (correlation monitor with barometric pressure) |
|
Required Sensors/Components (Main) |
Fuel pressure sensor (for high pressure side) |
|
Required Sensors/Components (Related) |
Atmospheric pressure sensor (ECM) |
|
Frequency of Operation |
Continuous |
|
Duration |
Within 30 seconds: Stuck monitor Within 10 seconds: Correlation monitor with barometric pressure |
|
MIL Operation |
2 driving cycles |
|
Sequence of Operation |
None |
TYPICAL ENABLING CONDITIONS
Stuck Monitor
|
All of the following conditions are met |
- |
|
Fuel pressure sensor (for high pressure side) circuit malfunction (P0192, P0193) |
Not detected |
|
High pressure fuel pump malfunction (P1235) |
Not detected |
|
Engine coolant temperature sensor malfunction (P0117, P0118) |
Not detected |
|
Barometric pressure sensor malfunction (P106C, P2228, P2229) |
Not detected |
|
Battery voltage |
11 V or higher |
|
Fuel cut |
Off |
|
Injection mode |
NOT PFI (Port fuel injection) |
Correlation Monitor with Barometric Pressure
|
All of the following conditions are met |
- |
|
Fuel pressure sensor (for high pressure side) circuit malfunction (P0192, P0193) |
Not detected |
|
High pressure fuel pump malfunction (P1235) |
Not detected |
|
Engine coolant temperature sensor malfunction (P0117, P0118) |
Not detected |
|
Barometric pressure sensor malfunction (P106C, P2228, P2229) |
Not detected |
|
Soak timer malfunction (P2610) |
Not detected |
|
Battery voltage |
8 V or higher |
|
Ignition switch |
Off |
|
Soak time |
5, 7 or 9.5 hours |
|
Atmospheric pressure |
76 kPa(abs) [11 psi(abs)] or higher |
TYPICAL MALFUNCTION THRESHOLDS
Stuck Monitor
|
Malfunction counter |
5 times or more (for continuously variable transaxle models) 8 times or more (for manual transaxle models) |
|
Fuel pressure sensor (for high pressure side) output deviation |
Less than 0.3 MPa (3.1 kgf/cm2, 43.5 psi) |
Correlation Monitor with Barometric Pressure
|
Malfunction counter |
5 seconds or more |
|
Fuel pressure sensor (for high pressure side) output |
Less than -1.881 MPa (-19.2 kgf/cm2, -273 psi), or higher than 2.543 MPa (25.9 kgf/cm2, 369 psi) |
CONFIRMATION DRIVING PATTERN
HINT:
-
After repair has been completed, clear the DTC and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.
Click here
-
When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.
Click here
- Connect the Techstream to the DLC3.
- Turn the ignition switch to ON.
- Turn the Techstream on.
- Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
- Turn the ignition switch off and wait for at least 30 seconds.
- Turn the ignition switch to ON [A].
- Turn the Techstream on.
- Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher [B].
-
Drive the vehicle for 15 minutes or more [C].
CAUTION:
When performing the confirmation driving pattern, obey all speed limits and traffic laws.
- Turn the ignition switch off.
- With the engine stopped, leave the vehicle as is for 5 hours or more [D].
- Turn the ignition switch to ON [E].
- Turn the Techstream on.
- Enter the following menus: Powertrain / Engine / Trouble Codes [F].
-
Read the pending DTCs.
HINT:
- If a pending DTC is output, the system is malfunctioning.
- If a pending DTC is not output, perform the following procedure.
- Enter the following menus: Powertrain / Engine / Utility / All Readiness.
- Input the DTC: P01902A or P019064.
-
Check the DTC judgment result.
Techstream Display
Description
NORMAL
ABNORMAL
- DTC judgment completed
- System abnormal
INCOMPLETE
- DTC judgment not completed
- Perform driving pattern after confirming DTC enabling conditions
HINT:
- If the judgment result is NORMAL, the system is normal.
- If the judgment result is ABNORMAL, the system has a malfunction.
- If the judgment result is INCOMPLETE, perform steps [B] through [F] again.
-
[A] to [F]: Normal judgment procedure.
The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
- When clearing the permanent DTCs, do not disconnect the cable from the battery terminal or attempt to clear the DTCs during this procedure, as doing so will clear the universal trip and normal judgment histories.
WIRING DIAGRAM
Refer to DTC P019011.
Click here
CAUTION / NOTICE / HINT
HINT:
Read Freeze Frame Data using the Techstream. The ECM records vehicle and driving condition information as Freeze Frame Data the moment a DTC is stored. When troubleshooting, Freeze Frame Data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.
PROCEDURE
|
1. |
CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P01902A OR P019064) |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Powertrain / Engine / Trouble Codes.
(e) Read the DTCs.
Powertrain > Engine > Trouble Codes
|
Result |
Proceed to |
|---|---|
|
DTC P01902A or P019064 is output |
A |
|
DTC P01902A or P019064 and P008700, P008800, P017100 or P017200 are output |
|
|
DTC P01902A or P019064 and other DTCs are output |
B |
HINT:
- If DTC P01902A or P019064 and P008700, P008800, P017100 or P017200 are output simultaneously, troubleshoot for DTC P01902A or P019064 first.
- If any DTCs other than P01902A or P019064 are output, troubleshoot those DTCs first.
| B |
|
GO TO DTC CHART
|
|
|
2. |
CHECK FUEL LEAK |
(a) Check around and beneath the vehicle for fuel leaks, fumes, etc.
OK:
No fuel leaks present.
| NG |
|
|
|
3. |
PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE TARGET FUEL PRESSURE OFFSET) |
(a) Connect the Techstream to the DLC3.
(b) Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher.
(c) Turn the Techstream on.
(d) 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 |
(e) 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 |
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 |
| B |
|
|
|
4. |
CHECK HARNESS AND CONNECTOR (FUEL PRESSURE SENSOR (FOR HIGH PRESSURE SIDE) - ECM) |
(a) Disconnect the ECM connector.
(b) Disconnect the fuel pressure sensor (for high pressure side) connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
Z3-3 (PR) - C76-97 (PR) |
Always |
Below 1 Ω |
|
Z3-2 (E2) - C76-96 (EPR) |
Always |
Below 1 Ω |
|
Z3-3 (PR) or C76-97 (PR) - Body ground and other terminals |
Always |
10 kΩ or higher |
| NG |
|
|
|
5. |
REPLACE FUEL PRESSURE SENSOR (FOR HIGH PRESSURE SIDE) |
(a) Replace the fuel pressure sensor (for high pressure side).
Click here
HINT:
Perform "Inspection After Repair" after replacing the fuel pressure sensor (for high pressure side).
Click here
|
|
6. |
CLEAR DTC |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Clear the DTCs.
Powertrain > Engine > Clear DTCs
(e) Turn the ignition switch off and wait for at least 30 seconds.
|
|
7. |
CHECK WHETHER DTC OUTPUT RECURS (DTC P01902A OR P019064) |
(a) Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.
(b) Enter the following menus: Powertrain / Engine / Trouble Codes.
(c) Read the pending DTCs.
Powertrain > Engine > Trouble Codes
|
Result |
Proceed to |
|---|---|
|
DTCs are not output |
A |
|
DTC P01902A or P019064 is output |
B |
| A |
|
END |
| B |
|
|
8. |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
(a) Repair or replace the wire harness or connector.
| NEXT |
|
|
9. |
REPLACE ECM |
(a) Replace the ECM.
Click here
| NEXT |
|
|
10. |
REPLACE FUEL PRESSURE SENSOR (FOR HIGH PRESSURE SIDE) |
(a) Replace the fuel pressure sensor (for high pressure side).
Click here
HINT:
Perform "Inspection After Repair" after replacing the fuel pressure sensor (for high pressure side).
Click here
| NEXT |
|
|
11. |
REPAIR OR REPLACE FUEL LEAK POINT |
(a) Repair or replace the fuel leak point.
|
|
12. |
CLEAR DTC |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Clear the DTCs.
Powertrain > Engine > Clear DTCs
(e) Turn the ignition switch off and wait for at least 30 seconds.
|
|
13. |
CHECK WHETHER DTC OUTPUT RECURS (DTC P01902A OR P019064) |
(a) Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.
(b) Enter the following menus: Powertrain / Engine / Trouble Codes.
(c) Read the pending DTCs.
Powertrain > Engine > Trouble Codes
OK:
DTCs are not output
| NEXT |
|
END |
|
|