P2632 Fault Code

Fuel Pump B Control Circuit /Open

• What does that mean?
• Symptoms
• Causes
• Solutions

The P2632 fault code indicates a problem with the fuel pump B control circuit, specifically that it is open or not functioning correctly. This can lead to inadequate fuel delivery to the engine, resulting in performance issues. Diagnosing this fault is crucial for ensuring the fuel system operates efficiently.

What are the symptoms of the P2632 code?

Common symptoms associated with the P2632 code are:

• Engine Stalling: The engine may stall due to lack of fuel.
• Difficulty Starting: The vehicle may struggle to start or may not start at all.
• Reduced Engine Power: The engine may experience reduced power and performance.
• Check Engine Light: The check engine light is likely to illuminate on the dashboard.

What causes the P2632 code?

Several factors can contribute to the P2632 code, including:

• Wiring Issues: Damaged or corroded wiring in the fuel pump circuit can cause an open circuit.
• Faulty Fuel Pump Relay: A malfunctioning relay may fail to supply power to the fuel pump.
• Failed Fuel Pump: If the fuel pump itself is defective, it may not respond to control signals.
• Bad ECM/PCM: The engine control module or powertrain control module might have internal issues affecting signal output.

How to fix P2632?

To resolve the P2632 fault code, the following steps can be taken:

• Inspect Wiring and Connectors: Check for any damaged or corroded wiring in the fuel pump circuit. Repair or replace as necessary.
• Test Fuel Pump Relay: Verify the operation of the fuel pump relay. Replace it if it is not functioning properly.
• Check Fuel Pump Operation: Ensure the fuel pump is operating correctly. If it is failed or worn out, replace it.
• Verify ECM/PCM Functionality: Check if the engine control module is sending the correct signals to the fuel pump. If the module is found to be faulty, consider reprogramming or replacing it.