P0629 - Fuel Pump A Control Circuit High
WARNING: This page is about a different car, the 2008 Ford Pickup, 2008 Ford F550 Super Duty, 2008 Ford F450 Super Duty, and 2008 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
P0629 - FUEL PUMP A CONTROL CIRCUIT HIGH
| Description: | The powertrain control module (PCM) monitors the fuel pump (FP) circuit output from the PCM. The test fails if the FP output is commanded ON (grounded), excessive current draw is detected on the FP circuit, or with the FP output commanded OFF, voltage is not detected on the FP circuit and the PCM expects to detect VPWR voltage coming through the fuel pump relay coil to the FP circuit. | |||
| Possible Causes: |
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| Diagnostic Aids: | Disregard a secondary fuel pump circuit DTC P0231 at this time and diagnose fuel pump control circuit DTC P0629. DTC P0231 may be set as the result of the FP circuit concern. | |||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory | |
| All | refer to PINPOINT TEST MA . | |||