P027B

Fuel Pump Module B Control Circuit Range/Performance

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Unstable engine operation
Problems starting the engine
Power reduction
Increased fuel consumption

Causes

Fuel pump module B malfunction
Open or short circuit in wiring harness
Poor contact in connectors
ECU malfunction

How to Fix

Check the integrity of the fuel pump module B wiring harness.
Check connectors for corrosion or damage
Check resistance and voltage at fuel pump module B
Replace fuel pump module B or ECU if necessary

Related codes

P027A P027C P025A