The OBD code P0406 for Ford indicates an issue with the Exhaust Gas Recirculation (EGR) system.
Symptoms include the Engine Light ON, engine hesitation.
Common causes are a faulty EGR volume control solenoid valve, carbon buildup on the EGR valve, or wiring issues.
This code should be addressed promptly to prevent potential engine performance issues.
A possible fix involves inspecting and repairing the EGR components and related wiring connections.
| Repair Importance Level | 6.67 (Out of 10) |
| Estimated Repair Time | Approximately 1.0 hour |
| Repair Difficulty Level | 6.67 (Out of 10) |
Symptoms of the Ford p0406 OBD Code
The vehicle may experience poor engine performance and increased fuel consumption with fault code P0406.
- Symptoms: Engine Light ON.
- Engine hesitation.
Causes of the Ford p0406 OBD Code
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The P0406 code in Ford vehicles typically indicates an issue with the Exhaust Gas Recirculation Sensor A circuit.
- P0406 can be caused by a faulty EGR volume control solenoid valve.
- Carbon built up on the EGR valve.
- An open or shorted EGR volume control solenoid valve harness.
- Poor electrical connection in the EGR volume control solenoid valve circuit.
- A faulty EGR temperature sensor and circuit.
Fixing Ford Error Code p0406 Step By Step
To address Ford P0406, inspect and clean the EGR valve and passages for carbon buildup.
- To fix Ford OBDII code P0406, first, review the possible causes related to the Exhaust Gas Recirculation (EGR) position sensor circuit.
- Visually examine the wiring harness and connectors for any signs of damage.
- Check the connector pins for being broken, bent, pushed out, or corroded.
- Test the EGR position sensor using a multimeter to ensure it is functioning correctly.
- Replace the EGR position sensor if it fails the test.
- Clear the fault code using an OBDII scanner and test drive the vehicle to verify the repair.
Cost Of Fixing Ford p0406 Fault Code
Diagnosing and repairing Ford P0406 involves testing and potentially replacing the Exhaust Gas Recirculation (EGR) position sensor.
The cost to diagnose and fix the Ford OBD code P0406 depends on the estimated 1. 0hour repair time.
Labor rates usually range from $75 to $150 per hour, so the general cost could be between $75 and $150. The final cost may vary based on shop rates, complexity of the issue, and any additional parts needed.
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Details of the Ford p0406 OBD Code
Code P0406 in Ford vehicles relates to an issue with the Exhaust Gas Recirculation Sensor A circuit.
Code P0406 for Ford vehicles means Exhaust Gas Recirculation Sensor A Circuit High.
This code is triggered when the ECM detects a high voltage signal from the EGR position sensor.
The EGR position sensor is responsible for monitoring the position of the EGR valve to ensure proper exhaust gas recirculation for emissions control.
When the sensor sends a higher than expected voltage signal to the ECM, it triggers the P0406 fault code.
Mechanic’s Tech Notes
Detailed information on diagnosing and repairing fault code P0406 in Ford vehicles.
To diagnose and fix OBDII code P0406 on a Ford vehicle, start by visually inspecting the EGR valve and its wiring harness for any signs of damage or corrosion.
Use a voltmeter to check the voltage at the EGR position sensor.
Ensure the sensor is responding correctly to changes in the EGR valve position.
If the sensor readings are out of specifications, consider replacing the EGR valve.
Additionally, check the EGR system for any clogs or restrictions that may be causing the issue.
Resetting the fault code after addressing these issues can help determine if the problem has been resolved.
FAQ
Common symptoms of OBD code P0406 in a Ford vehicle include Engine Light ON, engine hesitation. Causes may be faulty EGR volume control solenoid valve or carbon buildup on EGR valve.
Typical causes of OBD code P0406 in Ford vehicles include faulty EGR volume control solenoid valve, carbon buildup on EGR valve, and wiring harness issues.
Diagnose and repair OBD code P0406 in your Ford by checking EGR components for faults like solenoid valve issues, carbon buildup, or wiring problems. Inspect and repair as needed.
Wrap Up
If your Ford is displaying OBD code P0406, you may experience poor engine performance, rough idling, or decreased fuel efficiency.
This code typically indicates an issue with the Exhaust Gas Recirculation (EGR) position sensor circuit, such as a faulty EGR valve position sensor, damaged wiring, or poor electrical connections.
To address Ford OBD code P0406, start by inspecting the EGR valve and its sensor for any signs of damage or carbon buildup.
Check the wiring harness for any breaks, chafing, or corrosion that could be affecting the sensor’s operation.
