What is P0231 : Engine Error code Causes Explained
OBD-II engine error code P0231 indicates fuel pump secondary circuit low voltage. Wiring, connectors, or fuel pump relays frequently cause it. Maintaining engine performance and reliability requires root cause identification.
How to Identify a DTCs Number
Understand, this trouble codes (DTCs) are 5 characters: 1 letter, 4 numbers. P-Powertrain indicates the fault code’s location. Generic or manufacturer-specific codes are indicated by the first digit. The second digit denotes the subsystem (7=transmission). The last two numbers describe the issue.
To identify a DTC like P0231, use an OBD-II scanner by connecting it to the diagnostic port under the dashboard. It retrieves stored codes from the PCM, showing the error number and description for accurate troubleshooting.
Causes of P0231 Error Code:
- Faulty Fuel Pump Relay:
A faulty relay can block voltage to the fuel pump. - Damaged Wiring Harness:
Fuel pump harness issues can increase resistance or disrupt the circuit. - Defective Feedback Circuit:
PCM may disable the fuel pump relay due to feedback circuit issues. - Inertia Switch:
A tripped inertia switch can cut power to the fuel pump.
Risk Level of P1283 Error Code:
The P0231 engine error code indicates a Fuel Pump Secondary Circuit Low issue, and when it is classified as high risk, it means the problem can severely affect fuel delivery to the engine.
Immediate inspection and repairs are strongly recommended to prevent further damage and ensure vehicle safety.
Common Car Brands Affected by P1283 Code:
The P0231 code can affect various vehicles; it is most commonly associated with:
- Ford
- Nissan
- Jaguar
- Toyota
- Chevy
Video: P1283 Engine Error code
FAQ’s
What is the P0231 Engine Error Code?
The P0231 code indicates a problem in the fuel pump secondary circuit, often showing low voltage or a faulty signal.
What causes the P0231 Engine Error code?
It is usually caused by wiring faults, a failing fuel pump relay, corroded connectors, a Defective Feedback Circuit, or a weak fuel pump.
What’s the risk level of P0231 Engine Error code?
The risk level is high because it can cause hard starting, stalling, or complete engine shutdown while driving.
Which vehicles are affected by P0231 Engine Error code?
This error commonly affects many Ford, GM, Dodge, and other fuel-injected vehicles that rely on electronic fuel pump circuits.