AutoCodes - Chevrolet - P0231 CHEVROLET

P0231 CHEVROLET Code - Fuel Pump Secondary Circuit Low

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3
Table of contents

|P0231 CHEVROLET code possible causes

  • Blown Fuel Pump fuse
  • Open Fuel Pump Monitor Circuit
  • Faulty Fuel Pump Relay
  • Damaged Engine Control Module (ECM)

|How do I fix the P0231 CHEVROLET code?

Check 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.

|Cost of diagnosing the P0231 CHEVROLET code

Labor: 1.0

The cost of diagnosing the P0231 CHEVROLET code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

|When is the P0231 CHEVROLET code detected?

The code will be set if a low voltage on the control circuit of the fuel pump relay is detected by the ECM.

|What are P0231 CHEVROLET code possible symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

|P0231 CHEVROLET code description

The Engine Control Module (ECM) supplies voltage to the Fuel Pump Flow Control Module (FPCM) when the ECM detects that the ignition is on. The voltage from the ECM to the FPCM remains active for 2 seconds, unless the engine is in crank or run. While this voltage is being received, the FPCM supplies a varying voltage to the fuel tank pump module in order to maintain the desired fuel rail pressure.
OBDII Code P0231 Chevrolet - Fuel Pump Secondary Circuit Low -

|Need more information with the P0231 CHEVROLET code?

Need more information on how to fix the P0231 CHEVROLET code? Get Access to Factory Service Manuals

|Need help with a P0231 CHEVROLET code?

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|P0231 CHEVROLET code comments

Help us improve Leave a comment below or tell us if the information above helps you fix the code. What are the symptoms on your vehicle for the P0231 Chevrolet code? Have you replaced any parts?
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