P0658 Fault Code

Actuator Supply Voltage Circuit Low

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

The P0658 code indicates that there is an issue with the actuator supply voltage circuit being lower than expected. This could lead to various malfunctions in components that rely on the actuator supply voltage to operate correctly.

• The actuator supply circuit is crucial for the proper functioning of numerous engine and transmission components.
• When the voltage is low, these components may not receive the power they need to work properly, resulting in performance issues.

What are the symptoms of the P0658 code?

Symptoms that may accompany the P0658 code include:

• Poor engine performance and reduced power.
• Difficulty shifting gears in automatic transmissions.
• Warning lights illuminated on the dashboard, such as the check engine light.
• Abnormal engine behaviors, such as stalling or rough idling.

What causes the P0658 code?

Common causes of the P0658 code include:

• Faulty wiring or connectors, leading to poor electrical connections.
• A malfunctioning actuator or sensor that is drawing too much current.
• Issues with the Engine Control Module (ECM) that prevent it from properly supplying the voltage.
• A blown fuse in the circuit that supplies power to the actuators.

How to fix P0658?

To resolve the P0658 code, follow these steps:

• Inspect all wiring and connectors associated with the actuator supply voltage circuit for damage or corrosion.
• Use a multimeter to check the voltage levels at various points in the circuit.
• Replace or repair any defective components, such as actuators, sensors, or wiring.
• If no visible issues are found, consider testing the ECM for faults or performing a factory reset.