OBD Guide
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P1230

Fuel Pump Control Unit Malfunction

P1230 is an OBD-II diagnostic trouble code meaning: Fuel Pump Control Unit Malfunction. Common causes: malfunction of the fuel pump control unit, open or short circuit in control circuit. Estimated repair cost: $33–167.

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$33–167 (est.)

Symptoms

  • Engine won't start
  • Unstable engine operation
  • Power Loss
  • Stalls at idle
  • Check Engine light comes on

Causes

  • Malfunction of the fuel pump control unit
  • Open or short circuit in control circuit
  • Poor contact in connectors
  • Fuel pump relay malfunction
  • Problems with the fuel pump circuit fuse

How to Fix

  1. Check the fuel pump fuse
  2. Check fuel pump relay
  3. Inspect the connectors and wiring of the control unit
  4. Check control circuit resistance
  5. If necessary, replace the fuel pump control unit

Related codes

P0230P0231P0232

Error P1230 by Vehicle Brand

FordJaguarLincolnMercurySubaruVolkswagen

FAQ

What does the P1230 code mean?

P1230 is an OBD-II diagnostic trouble code that indicates: Fuel Pump Control Unit Malfunction

What causes a P1230 error code?

The most common causes of P1230 include: Malfunction of the fuel pump control unit; Open or short circuit in control circuit; Poor contact in connectors; Fuel pump relay malfunction.

How do I fix a P1230 diagnostic trouble code?

To fix P1230: Check the fuel pump fuse. Check fuel pump relay. Inspect the connectors and wiring of the control unit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1230?

Do not drive — repair immediately

How much does it cost to fix P1230?

The estimated repair cost for P1230 is $33–167. Actual cost depends on your vehicle, location, and labor rates.

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