OBD Guide

P027D

Fuel Pump Module B Control Circuit High

P027D is an OBD-II diagnostic trouble code meaning: Fuel Pump Module B Control Circuit High. Common causes: open or short circuit in wiring harness, malfunction of fuel pump module b. Estimated repair cost: $56–222.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–222 (est.)

Symptoms

  • Unstable engine operation
  • Power Loss
  • Difficulty starting the engine
  • Increased fuel consumption

Causes

  • Open or short circuit in wiring harness
  • Malfunction of fuel pump module B
  • Problems with the fuel pump relay
  • ECU malfunction

How to Fix

  1. Check wiring harness for damage
  2. Check the voltage in the control circuit of the fuel pump module B
  3. Check the operation of the fuel pump relay
  4. If necessary, replace fuel pump module B
  5. Check and reflash the ECU (if required)

Related codes

Error P027D by Vehicle Brand

FAQ

What does the P027D code mean?

P027D is an OBD-II diagnostic trouble code that indicates: Fuel Pump Module B Control Circuit High

What causes a P027D error code?

The most common causes of P027D include: Open or short circuit in wiring harness; Malfunction of fuel pump module B; Problems with the fuel pump relay; ECU malfunction.

How do I fix a P027D diagnostic trouble code?

To fix P027D: Check wiring harness for damage. Check the voltage in the control circuit of the fuel pump module B. Check the operation of the fuel pump relay. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P027D?

Limited driving only, diagnose soon

How much does it cost to fix P027D?

The estimated repair cost for P027D is $56–222. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat