Toyota Corolla Cross: Fuel Pump Control Module Internal Electronic Failure (P064A49)
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: except Mexico Models, 1 trip detection logic: for Mexico Models). |
Fuel pump control ECU |
|
|
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: except Mexico Models Immediate: for Mexico Models |
|
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% |
| Auxiliary 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
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- When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.
Click here
- Connect the GTS to the DLC3.
- Turn the ignition switch to ON.
- Turn the GTS 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.
- Start the engine and wait 10 seconds or more [A].
- Turn the GTS on.
- Enter the following menus: Powertrain / Engine / Trouble Codes [B].
- 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: P064A49.
- 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 2000 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 auxiliary 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.
|
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| 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|
Result | Proceed to |
|---|---|
|
DTC P064A49 is output |
A |
| DTC P064A49 and other DTCs are output |
B |
| A |
.gif) | REPLACE FUEL PUMP CONTROL ECU |
| B |
| GO TO DTC CHART |
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