DTC P0627-12: Fuel Pump "A" Control Circuit Short to Battery [08/2020 - ]: Description
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The fuel pump control ECU performs PWM (Pulse Width Modulation) control to control the fuel pump (for low pressure side) speed steplessly over a wide range.
The fuel pump control ECU controls the speed of the fuel pump (for low pressure side) by switching the current of FPU, FPV and FPW based on operation signals output from the ECM.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory | Note |
|---|---|---|---|---|---|---|
| P0627-12 | Fuel Pump "A" Control Circuit Short to Battery | When the fuel pump control ECU operation duty ratio is 3 to 65%, the FPC terminal voltage is at a certain value or more for 3 seconds or more (1 trip detection logic). |
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DTC stored |
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RELATED DATA LIST
| DTC No. | Data List |
|---|---|
| P0627-12 | Fuel Pump Control Duty Ratio |