P027A

Fuel Pump Module B Control Circuit/Open

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Power loss under load
Unstable engine operation
Difficulty starting
Increased fuel consumption

Causes

Broken or damaged wiring harness
Fuel pump module B malfunction
Relay or fuse problems
Engine control unit (ECU) malfunction

How to Fix

Check the integrity of the wiring harness and connections
Check fuses and relays
Test fuel pump module B
Replace module or wiring harness if necessary
Reset the error and check the system operation

Related codes

P027B P0230 P0231