P0231 OBD II Trouble Code Fuel Pump Secondary (Feedback) Circuit Low Voltage

Detailed information on troubleshooting and repairing a P0231 DTC code which has to do with low voltage on the fuel pump secondary circuit. Also includes links to relevant forum topics on the code.

Symptoms of P0231 OBD II Trouble Code

Common Causes of P0231 OBD II Trouble Code

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