P2671 Fault Code

Actuator Supply Voltage B Circuit High

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

The P2671 fault code indicates an issue with the Actuator Supply Voltage B Circuit, specifically that the voltage is higher than expected. This can be due to various electrical faults or malfunctions in the vehicle’s system. It is crucial to address this issue to ensure reliable operation of the vehicle's actuators.

What are the symptoms of the P2671 code?

• Warning lights illuminating on the dashboard
• Unexpected behavior of vehicle systems reliant on actuators, such as erratic steering or throttle response
• Failure of specific systems to operate, such as power windows or seat adjustments
• Possible limp mode engagement to protect vehicle from further damage

What causes the P2671 code?

• Wiring issues, such as short circuits or damaged insulation
• Faulty actuators that are drawing excessive current
• Problems with the vehicle's power supply, leading to voltage spikes
• Defective control units that monitor actuator operations
• Corroded or loose connections in the actuator supply circuit

How to fix P2671?

• Inspect the wiring and connectors associated with the actuator supply circuit for any visible damage
• Test the voltage at the actuator to verify if it exceeds specifications
• Replace or repair any faulty actuators that may be causing a draw on the power supply
• Use a scanner to reset the fault codes after repairs and monitor for reoccurrence
• Ensure that the vehicle’s battery and charging system are functioning properly to prevent voltage spikes