OBD Guide
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P1233

Fuel Pump Driver Module Disabled Or Off Line

P1233 is an OBD-II diagnostic trouble code meaning: Fuel Pump Driver Module Disabled Or Off Line . Common causes: fuel pump control module (fpcm) malfunction, open or short circuit in fpcm control circuit. Estimated repair cost: $56–167.

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–167 (est.)

Symptoms

  • Engine won't start
  • Floating idle speed
  • Loss of power during acceleration
  • Stalling engine
  • Check Engine light comes on

Causes

  • Fuel pump control module (FPCM) malfunction
  • Open or short circuit in FPCM control circuit
  • Problems with the fuel pump relay
  • Poor contact in FPCM connectors
  • Engine control unit (ECU) malfunction

How to Fix

  1. Check fuel system fuses and relays
  2. Check the integrity of the wiring to the FPCM
  3. Check module connectors and contacts
  4. Test or replace FPCM
  5. Check the operation of the engine control unit

Related codes

P1234P1235P0627

Error P1233 by Vehicle Brand

FordLincolnMercury

FAQ

What does the P1233 code mean?

P1233 is an OBD-II diagnostic trouble code that indicates: Fuel Pump Driver Module Disabled Or Off Line

What causes a P1233 error code?

The most common causes of P1233 include: Fuel pump control module (FPCM) malfunction; Open or short circuit in FPCM control circuit; Problems with the fuel pump relay; Poor contact in FPCM connectors.

How do I fix a P1233 diagnostic trouble code?

To fix P1233: Check fuel system fuses and relays. Check the integrity of the wiring to the FPCM. Check module connectors and contacts. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1233?

Do not drive — repair immediately

How much does it cost to fix P1233?

The estimated repair cost for P1233 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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