The automobile fault code P1405 indicates a problem with the Differential Pressure Feedback Electronic (DPFE) sensor, which is responsible for monitoring the pressure in the Exhaust Gas Recirculation (EGR) system.
The most common symptom is the Engine Light being ON or the Service Engine Soon Warning Light. The cause could be a faulty DPFE sensor, a plugged or damaged EGR tube, an open or shorted DPFE sensor harness, or a poor electrical connection in the DPFE sensor circuit.
The importance of repairing this issue lies in maintaining proper engine performance and emissions control. The repair process involves visually inspecting the wiring harness and connectors, checking for damaged components, and looking for any broken, bent, pushed out, or corroded connector pins. The repair time for this issue is estimated to be around 1.0 hour.
To interpret the fault code, it is recommended to check the “Possible Causes” mentioned above and perform the necessary inspections and repairs.
Repair Importance Level | 6.67 (Out of 10) |
Estimated Repair Time | Approximately 1.0 hour |
Repair Difficulty Level | 6.67 (Out of 10) |
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Unveiling The Mystery: Symptoms Of Fault Code P1405 Revealed!
When the engine light is on or the service engine soon warning light is illuminated, it could be a sign of the p1405 fault code.
- The symptoms of the automobile fault code P1405 include the Engine Light being ON or the Service Engine Soon Warning Light being illuminated.
Unraveling The Mystery: What Causes Fault Code P1405?
The automobile fault code P1405 can be caused by a faulty DPFE sensor, a plugged or damaged EGR tube, an open or shorted DPFE sensor harness, a poor electrical connection in the DPFE sensor circuit, or a faulty PCM.
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- The fault code P1405 can be caused by a faulty Differential Pressure Feedback Electronic (DPFE) sensor (EGR pressure sensor), a plugged or damaged EGR tube, an open or shorted DPFE sensor harness, a poor electrical connection in the DPFE sensor circuit, or a faulty Powertrain Control Module (PCM).
Fixing Code P1405: Simple Steps To Resolve The Issue
To fix the p1405 fault code, start by visually inspecting the wiring harness, connectors, and components for any damage or corrosion.
- To fix the automobile fault code P1405, follow these steps: 1.
- Check the possible causes mentioned above.
- 2.
- Visually inspect the wiring harness and connectors related to the fault code.
- 3.
- Look for any damaged components.
- 4.
- Check for broken, bent, pushed out, or corroded pins in the connectors.
- The estimated repair time for this fix is 1.0 hour.
Cracking The Code: P1405 – Cost And Complexity Unveiled!
The factors influencing the diagnosis and fixing cost of the automobile fault code P1405 are the estimated repair time and the hourly rate charged by auto repair shops.
The estimated repair time for this fault code is 1.0 hour.
Auto repair shops typically charge between $75 and $150 per hour for their services.
These factors will determine the overall cost of diagnosing and fixing the P1405 fault code.
P1405 Fault Code: Understanding The Description And Troubleshooting Steps
The P1405 fault code refers to a problem with the DPF EGR Sensor Circuit, specifically indicating a high voltage issue.
The Exhaust Gas Recirculation (EGR) system is responsible for reducing emissions by redirecting exhaust gas back into the intake.
The system includes components such as the EGR valve, Electronic Vacuum Regulator (EVR), and the Delta Pressure Feedback EGR sensor (DPFE).
The DPFE sensor measures the flow of EGR across an orifice in the EGR tube. When the EGR valve is open, a pressure difference is created, and this difference is measured by the DPFE sensor as voltage.
The voltage signal is then sent to the Powertrain Control Module (PCM) to determine the amount of exhaust gas entering the intake manifold. The P1405 code specifically indicates that there is a high voltage reading in the DPF EGR Sensor Circuit.
This could be caused by a faulty DPFE sensor, a problem with the wiring or connectors, or an issue with the PCM.
It is important to address this fault code promptly to ensure proper functioning of the EGR system and to reduce emissions.
FAQ
If you notice that your engine light is on or you see a service engine soon warning light, it could be a sign of a faulty Differential Pressure Feedback Electronic (DPFE) sensor (EGR pressure sensor). This can be caused by a plugged or damaged EGR tube, an open or shorted DPFE sensor harness, a poor electrical connection in the DPFE sensor circuit, or even a faulty Powertrain Control Module (PCM). To fix this issue, you should visually inspect the wiring harness and connectors, checking for any damage or corrosion. Additionally, look out for broken, bent, pushed out, or corroded pins in the connectors.
If you’re seeing the P1405 fault code in your automobile, it’s important to understand the possible causes and how to visually inspect them. This code is often accompanied by the Engine Light or Service Engine Soon Warning Light. The causes can include a faulty Differential Pressure Feedback Electronic (DPFE) sensor (EGR pressure sensor), a plugged or damaged EGR tube, an open or shorted DPFE sensor harness, a poor electrical connection in the DPFE sensor circuit, or a faulty Powertrain Control Module (PCM). To visually inspect these causes, check the related wiring harness and connectors for any damage. Look out for broken, bent, pushed out, or corroded connector pins as well.
If you’re experiencing the Engine Light ON or Service Engine Soon Warning Light in your automobile, it could be due to a faulty Powertrain Control Module (PCM). To identify this as the cause of the P1405 fault code, you should check for other possible causes such as a faulty Differential Pressure Feedback Electronic (DPFE) sensor, a plugged or damaged EGR tube, or a poor electrical connection in the DPFE sensor circuit. Visually inspect the wiring harness and connectors for any damage, and check for broken, bent, pushed out, or corroded pins in the connectors.

Wrap Up
If your engine light is on and you suspect it’s the p1405 fault code, there are a few things you can do. First, check the possible causes: a faulty DPFE sensor, a plugged or damaged EGR tube, an open or shorted DPFE sensor harness, or a poor electrical connection in the DPFE sensor circuit. Next, visually inspect the wiring harness and connectors for any damage.
Look for broken, bent, pushed out, or corroded pins on the connectors.
Taking these steps can help you diagnose and fix the issue.