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 |
|---|---|---|---|---|---|
| P064A-49 | 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 |