Why does my fuel pump have a p0232 code?
Potential causes of a P0232 code include: Short to voltage on FP voltage supply circuit or feedback circuit FP relay control driver shorted to ground internally It is possible with a P0232 for the fuel pump to be running continuously, even with the ignition off.
What are the symptoms of a p0232 DTC?
Symptoms of a P0232 DTC may include: 1 MIL (malfunction indicator lamp) illumination. 2 Fuel pump runs with key off. 3 Small amount of voltage present on FP (fuel pump) voltage supply circuit due to short.
How is the fuel pump powered by the PCM?
The fuel pump is powered by the fuel pump relay. When the PCM (powertrain control module) activates the fuel pump relay, voltage is supplied to the fuel pump and it pressurizes the fuel system. Some vehicles have a feedback on the fuel pump supply circuit. This is simply a circuit spliced into the voltage feed to the fuel pump.
Can a Mercury Grand Marquis run without gas?
Without gas your Grand Marquis will not run at all. With that in mind, most of the symptoms of a bad fuel pump revolve around the vehicle stalling out or not running at all. In modern fuel injected vehicles, the fuel pump sits right in the fuel tank and “pushes” the gasoline to the fuel rail (s).
How can you tell if your Grand Marquis fuel pump is going out?
The only way that you are going to know that your Grand Marquis’s fuel pump is going out is that it is no longer providing enough fuel pressure to keep the engine running under a heavy load, or at high-speed. Typically, if you are heading up a hill (or accelerating) the engine may start to feel like it is just running out of steam.
What are the symptoms of a bad fuel pump?
Here are the most common symptoms of a bad fuel pump in your Mercury Grand Marquis: One of the most common signs that a fuel pump is going bad is a whining sound. The whining sound can indicate that the fuel pump is going out before there are any performance based issues.
What do you need to start a Mercury Grand Marquis?
At the most basic of levels your Mercury Grand Marquis needs three things to start: Air, fuel, and spark . If any of these things aren’t present, the engine won’t turn over at all.
What is the OBD code for a Ford fuel pump?
Ford P0232 OBD-II Trouble Code Definition: P0232 Fuel Pump Secondary Circuit High. P0232 Ford OBD-II Trouble CodeDescription: OBD Trouble Code P0232.
Where is the feedback circuit on a fuel pump?
When the PCM (powertrain control module) activates the fuel pump relay, voltage is supplied to the fuel pump and it pressurizes the fuel system. Some vehicles have a feedback on the fuel pump supply circuit. This is simply a circuit spliced into the voltage feed to the fuel pump. The splice is usually located close to the PCM.
What does the code p0232 mean on a fuel pump?
Fuel Pump Secondary Circuit High What the P0232 code means P0232 is a generic OBD-II code that is triggered when the engine control module (ECM) detects that the secondary circuit to the fuel pump has a high voltage when the fuel pump relay is turned off.
What is the diagnostic code for fuel pump secondary circuit high?
Cost of diagnosing the P0232 code. P0232 is a diagnostic trouble code (DTC) for “Fuel Pump Secondary Circuit High”. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation.
What is the OBD code for fuel pump?
All our repairs are backed by our 12-month / 12,000-mile warranty. P0232 is a generic OBD-II code that is triggered when the engine control module (ECM) detects that the secondary circuit to the fuel pump has a high voltage when the fuel pump relay is turned off.
When does the fuel pump relay de-energize?
If no crankshaft reference pulses are received, the ECM de-energizes the fuel pump relay after 2 seconds. The ECM monitors the voltage on the fuel pump relay control circuit. Need more information on how to fix the P0232 FORD code?