P2669 Fault Code

Actuator Supply Voltage B Circuit /Open

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

The P2669 fault code indicates an issue with the actuator supply voltage B circuit. This code typically points to a problem where the circuit is open or not properly connected, which can lead to the malfunctioning of various actuators in the vehicle's system.

What are the symptoms of the P2669 code?

Common symptoms associated with the P2669 code include:

• Warning lights illuminated on the dashboard, such as the check engine light.
• Malfunctioning actuators leading to impaired vehicle performance.
• Erratic behavior from systems that rely on actuators, including but not limited to heating, cooling, and other comfort features.
• Intermittent loss of functionality in vehicle components that depend on the affected actuator.

What causes the P2669 code?

Several factors can cause this fault code to appear, including:

• A broken or damaged wire within the actuator supply circuit.
• A faulty actuator that is drawing too much current or is internally shorted.
• Poor connections or corroded terminals that can disrupt the flow of electricity.
• Malfunctioning engine control unit (ECU) that fails to send the correct voltage.

How to fix P2669?

To resolve the P2669 fault code, consider the following steps:

• Begin by inspecting the wiring and connectors associated with the actuator supply voltage B circuit for any signs of damage or corrosion.
• Repair or replace any damaged wiring or connectors found during the inspection.
• Test the actuator to ensure it is functioning properly and not causing excessive draw on the circuit. Replace the actuator if necessary.
• Use a multimeter to check voltage supply from the ECU to the actuator and ensure it falls within the manufacturer’s specified range.
• Clear the fault code after repairs and conduct a test drive to verify that the issue has been resolved.