p0658 actuator supply voltage a circuit low
P0658 Actuator Supply Voltage A Circuit Low
Definition: The OBD-II code P0658 indicates a problem with the actuator supply voltage circuit, specifically that the voltage is lower than expected. This can affect various components in the vehicle that rely on this circuit for proper operation.
p0658 – Actuator Supply Voltage A Circuit Low
Typical Severity: Moderate
Common Causes
P0658 – Actuator Supply Voltage A Circuit Low
Common causes:
- Faulty actuator supply voltage sensor
- Short circuit or open circuit in the wiring for the actuator supply voltage sensor
- Loose or poor electrical connection at the actuator supply voltage sensor
- Defective Engine Control Module (ECM)
Common Misdiagnosis
OBD2 Code: P0658
Description: Actuator Supply Voltage “A” Circuit Low
Common Misdiagnosis: Replacing the actuator or sensor without checking for wiring issues or a faulty control module.
Common Diagnostic Steps
OBD2 Code: P0658
Description: Actuator Supply Voltage “A” Circuit Low
- Check for any blown fuses related to the actuator supply circuit.
- Inspect the wiring and connectors for damage, corrosion, or loose connections in the actuator supply voltage circuit.
- Test the voltage at the actuator connector to ensure it is within specifications.
- Use a multimeter to check for continuity in the actuator supply circuit wiring.
- Examine the control module for any signs of damage or failure.
- If equipped, use a scan tool to monitor live data and verify if there are any other related codes present that could indicate a broader issue.
- If all else fails, consider replacing the affected actuator after confirming it is faulty through testing procedures outlined by manufacturer guidelines.