Why does my fuel pump have a p0231 DTC?
Why does my fuel pump have a p0231 DTC?
The PCM monitors this feedback circuit to ensure that there is proper voltage being sent to the fuel pump. As it activates the fuel pump relay, it expects to see battery voltage on the feedback circuit. If it sees voltage that is too low or no voltage at all, it may set P0231. Symptoms of a P0231 DTC may include:
What does the OBD code p0230 mean?
P0230 is a generic OBD-II code which indicates that the fuel pump primary circuit has a malfunction of the vehicle power to the fuel pump when it is commanded on or off What causes the P0230 code? The engine control module (ECM) detects the primary fuel pump circuit voltage as below specifications from the fuel pump relay to the ECM
What causes the fuel pump code to be set?
The code will be set if a low voltage on the control circuit of the fuel pump relay is detected by the ECM. The Engine Control Module ( ECM) provides ignition positive voltage to the coil side of the fuel pump relay. When the ignition switch is first turned ON, the ECM energizes the fuel pump relay, which applies power to the fuel pump.
What to do if you get a p0231 code?
Start by checking the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins. The cost to diagnose the P0231 code is 1.0 hour of labor.
The PCM monitors this feedback circuit to ensure that there is proper voltage being sent to the fuel pump. As it activates the fuel pump relay, it expects to see battery voltage on the feedback circuit. If it sees voltage that is too low or no voltage at all, it may set P0231. Symptoms of a P0231 DTC may include:
The code will be set if a low voltage on the control circuit of the fuel pump relay is detected by the ECM. The Engine Control Module ( ECM) provides ignition positive voltage to the coil side of the fuel pump relay. When the ignition switch is first turned ON, the ECM energizes the fuel pump relay, which applies power to the fuel pump.
Start by checking the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins. The cost to diagnose the P0231 code is 1.0 hour of labor.
What causes low voltage fuel pump secondary circuit?
The ECM monitors the fuel pump relay secondary circuit for voltage. If voltage drops below a certain threshold, it will set DTC P0231, which is defined as “Low Voltage Fuel Pump Secondary Circuit.” What are the common causes of code P0231 ?
