Last Modified: 07-31-2024 6.11:8.1.0 Doc ID: RM10000000255V7
Model Year Start: 2023 Model: GR Corolla Prod Date Range: [09/2022 -           ]
Title: G16E-GTS (ENGINE CONTROL): SFI SYSTEM: P064A49; Fuel Pump Control Module Internal Electronic Failure; 2023 - 2025 MY GR Corolla [09/2022 -        ]

DTC

P064A49

Fuel Pump Control Module Internal Electronic Failure

MONITOR DESCRIPTION

The fuel pump control ECU has a self-diagnosis function. If there is an internal malfunction, the fuel pump control ECU sends a malfunction signal to the ECM via the FPC drive circuit.

Based on the signal, the ECM judges that there is a malfunction in the fuel pump control ECU stores a DTC.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Note

P064A49

Fuel Pump Control Module Internal Electronic Failure

When the fuel pump control ECU operation duty ratio is 3 to 65%, there is an internal malfunction in the fuel pump control ECU for 3 seconds or more (2 trip detection logic).

Fuel pump control ECU

Comes on

SAE Code: P064A

MONITOR STRATEGY

Related DTCs

P064A: Fuel pump control module range check

Required Sensors/Components (Main)

Fuel pump control ECU

Required Sensors/Components (Related)

-

Frequency of Operation

Continuous

Duration

3 seconds

MIL Operation

2 driving cycles

Sequence of Operation

None

TYPICAL ENABLING CONDITIONS

Monitor runs whenever the following DTCs are not stored

None

All of the following conditions are met

-

Output duty cycle

3 to 65%

Battery voltage

10.5 V or higher

Ignition switch

ON

Starter

Off

TYPICAL MALFUNCTION THRESHOLDS

Internal malfunction from fuel pump control module

Received

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 2023 - 2025 MY GR Corolla [09/2022 -        ]; G16E-GTS (ENGINE CONTROL): SFI SYSTEM: DTC CHECK / CLEAR

  • When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.

    Click here 2023 - 2025 MY GR Corolla [09/2022 -        ]; G16E-GTS (ENGINE CONTROL): SFI SYSTEM: DTC CHECK / CLEAR

  1. Connect the GTS to the DLC3.
  2. Turn the ignition switch to ON.
  3. Turn the GTS on.
  4. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
  5. Turn the ignition switch off and wait for at least 30 seconds.
  6. Start the engine and wait 10 seconds or more [A].
  7. Turn the GTS on.
  8. Enter the following menus: Powertrain / Engine / Trouble Codes [B].
  9. 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.
  10. Enter the following menus: Powertrain / Engine / Utility / All Readiness.
  11. Input the DTC: P064A49.
  12. Check the DTC judgment result.

    GTS Display

    Description

    NORMAL

    • DTC judgment completed
    • System 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 is malfunctioning.
    • If the judgment result is INCOMPLETE, run the engine at an engine speed of 2500 rpm or more for 10 seconds or more and check the DTC judgment result again.
    • [A] to [B]: 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.

CAUTION / NOTICE / HINT

HINT:

Read Freeze Frame Data using the GTS. 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.

CLEAR DTC

(a) Clear the DTCs.

Powertrain > Engine > Clear DTCs

(b) Turn the ignition switch off and wait for at least 30 seconds.

NEXT

2.

CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P064A49)

(a) Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern.

(b) Read the DTCs.

Powertrain > Engine > Trouble Codes

(c) None.

Result

Proceed to

P064A49 and other DTCs are output

A

P064A49 is output

B

A

GO TO DTC CHART

B

REPLACE FUEL PUMP CONTROL ECU 2023 MY GR Corolla [09/2022 - 11/2022]; G16E-GTS (FUEL): FUEL PUMP ECU: REMOVAL 2023 - 2025 MY GR Corolla [11/2022 -        ]; G16E-GTS (FUEL): FUEL PUMP ECU: REMOVAL