OBD Guide
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P14D4

Fuel Pump Driver Control Module Configuration Command Signal 2 Message Counter Incorrect

P14D4 is an OBD-II diagnostic trouble code meaning: Fuel Pump Driver Control Module Configuration Command Signal 2 Message Counter Incorrect. Common causes: malfunction of the fuel pump control module, problems in the module communication circuit. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Unstable engine operation
  • Problems starting the engine
  • Reduced engine power
  • Check Engine light comes on

Causes

  • Malfunction of the fuel pump control module
  • Problems in the module communication circuit
  • Short circuit or broken wires
  • Software error in control module

How to Fix

  1. Check the integrity of the module communication circuit
  2. Diagnose the fuel pump control module
  3. Replace the control module if necessary
  4. Update module software

Related codes

P14D3P14D5

FAQ

What does the P14D4 code mean?

P14D4 is an OBD-II diagnostic trouble code that indicates: Fuel Pump Driver Control Module Configuration Command Signal 2 Message Counter Incorrect

What causes a P14D4 error code?

The most common causes of P14D4 include: Malfunction of the fuel pump control module; Problems in the module communication circuit; Short circuit or broken wires; Software error in control module.

How do I fix a P14D4 diagnostic trouble code?

To fix P14D4: Check the integrity of the module communication circuit. Diagnose the fuel pump control module. Replace the control module if necessary. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P14D4?

Yes, but get it checked soon

How much does it cost to fix P14D4?

The estimated repair cost for P14D4 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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