P1405 2002 Ford F150 Code - DPF EGR Sensor Circuit High Voltage Detected
Quick Answer
The purpose of the Exhaust Gas Recirculation (EGR) system on your engine is to limit oxides of nitrogen (NOx) emissions. Common causes include Faulty Differential Pressure Feedback Electronic (DPFE) sensor (EGR pressure sensor), Plugged or damaged EGR tube, Differential Pressure Feedback Electronic (DPFE) sensor harness is open or shorted. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
- What it means
- P1405 2002 Ford F150 indicates DPF EGR Sensor Circuit High Voltage Detected .
- Common causes
- Common causes include Faulty Differential Pressure Feedback Electronic (DPFE) sensor (EGR pressure sensor), Plugged or damaged EGR tube, Differential Pressure Feedback Electronic (DPFE) sensor harness is open or shorted.
- Severity
- Moderate - service should be scheduled soon.
- Can I drive?
- The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
Code P1405 2002 Ford F150 Description
The Ford DPFE/EGR system is controlled by the Powertrain Control Module (PCM). The system employs an EGR Valve, an Electronic Vacuum Regulator (EVR), and a Delta Pressure Feedback EGR sensor (DPFE).
The DPFE Sensor measures EGR flow across an orifice located inside the special EGR Tube. The orifice is positioned between two hose ports coming off the tube which is connected to the DPFE sensor with special heat-resistant hoses. When the EGR Valve is open, a pressure differential is created across the orifice (intake manifold pressure vs. exhaust pressure). By design, this difference in pressure is measured by the DPFE sensor in terms of voltage. The DPFE voltage signal output to the PCM is directly proportional to the flow of exhaust gas entering the intake manifold.
What are the Possible Causes of the DTC P1405 2002 Ford F150?
- Faulty Differential Pressure Feedback Electronic (DPFE) sensor (EGR pressure sensor)
- Plugged or damaged EGR tube
- Differential Pressure Feedback Electronic (DPFE) sensor harness is open or shorted
- Differential Pressure Feedback Electronic (DPFE) sensor circuit poor electrical connection
- Faulty Powertrain Control Module (PCM)
How to Fix the DTC P1405 2002 Ford F150?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1405 2002 Ford F150 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P1405 2002 Ford F150 Code
1. What are the common symptoms of OBDII code P1405 in a 2002 Ford F150?
- Common symptoms include engine hesitation, decreased fuel efficiency, rough idling, and the illumination of the Check Engine Light.
2. What does the OBDII code P1405 on a 2002 Ford F150 indicate?
- The code P1405 indicates that the DPF EGR sensor circuit has detected high voltage, signaling a potential issue with the EGR system.
3. What are the possible causes of the DPF EGR sensor circuit high voltage detected in a 2002 Ford F150?
- Possible causes include a faulty DPF EGR sensor, damaged wiring or connectors in the sensor circuit, or issues with the EGR valve itself.
4. How can I diagnose the cause of OBDII code P1405 in my 2002 Ford F150?
- To diagnose the issue, you can perform a visual inspection of the sensor and its wiring, test the sensor's voltage output, and use a scan tool to monitor EGR system data.
5. What are some repair tips for fixing OBDII code P1405 on a 2002 Ford F150?
- Repair tips may include replacing the DPF EGR sensor, repairing damaged wiring or connectors, cleaning or replacing the EGR valve, and clearing the trouble code.
6. Can driving with OBDII code P1405 in a 2002 Ford F150 cause further damage?
- Continuing to drive with this code may lead to reduced engine performance, increased emissions, and potential damage to other engine components over time.
7. How much does it typically cost to repair OBDII code P1405 on a 2002 Ford F150?
- The cost of repair can vary depending on the exact cause of the issue, but it may range from $100 to $300 for parts and labor.
8. Is it safe to ignore OBDII code P1405 in a 2002 Ford F150?
- Ignoring the code can lead to poor engine performance and increased emissions, so it's recommended to address the issue promptly to prevent further complications.
9. Can I reset the Check Engine Light after repairing OBDII code P1405 on my 2002 Ford F150?
- Yes, you can reset the Check Engine Light using an OBDII scanner after repairing the issue and verifying that the problem has been resolved.
10. Is the DPF EGR sensor circuit high voltage detected a common issue in 2002 Ford F150 vehicles?
- While it may not be extremely common, some 2002 Ford F150 vehicles may experience this issue over time due to sensor or wiring failures related to the EGR system.
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