P2633

Fuel Pump B Control Circuit Low

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$33–167 (est.)

Symptoms

The engine stalls or does not start
Unstable engine operation
Power reduction
Increased fuel consumption
Check Engine Light Is On

Causes

Fuel pump B malfunction
Open or short circuit in wiring
Poor contact in connectors
Fuel pump relay malfunction
Problems with the engine control module (ECU)

How to Fix

Check the voltage at the fuel pump B control circuit.
Inspect wiring and connectors for damage
Check the operation of the fuel pump relay
Test fuel pump B
If necessary, replace the fuel pump or relay

Related codes

P2630 P2631 P2632