P1403 Dodge Code - 5 volt reference voltage to EGR valve missing
Quick Answer
When the diagnostic trouble code P1403 appears on a Dodge vehicle, it indicates that there is a problem with the 5-volt reference voltage being supplied to the Exhaust Gas Recirculation (EGR) valve. Common causes include Faulty wiring harness, Blown fuse related to the 5-volt reference circuit, Malfunctioning EGR valve position sensor. 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
- P1403 Dodge indicates 5 volt reference voltage to EGR valve missing.
- Common causes
- Common causes include Faulty wiring harness, Blown fuse related to the 5-volt reference circuit, Malfunctioning EGR valve position sensor.
- 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.
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Code P1403 Dodge Description
When the diagnostic trouble code P1403 appears on a Dodge vehicle, it indicates that there is a problem with the 5-volt reference voltage being supplied to the Exhaust Gas Recirculation (EGR) valve. The EGR valve is responsible for recirculating a portion of the exhaust gases back into the engine's intake system to reduce emissions and improve fuel efficiency. The 5-volt reference voltage is crucial for the EGR valve to operate correctly and regulate the amount of exhaust gas being recirculated.
Common Causes of P1403 Dodge
- Faulty wiring harness
- Blown fuse related to the 5-volt reference circuit
- Malfunctioning EGR valve position sensor
- Issues with the Engine Control Module (ECM)
- Corrosion or poor connections in the electrical system
Symptoms of P1403 Dodge
- Rough idling or engine misfires
- Decreased fuel efficiency
- Stalling or hesitation during acceleration
- Check Engine Light illuminated
- Failed emissions test
How to Fix P1403 Dodge
- Begin by performing a thorough inspection of the wiring harness and connections related to the 5-volt reference circuit for any damage or corrosion.
- Check and replace any blown fuses in the circuit.
- Test the EGR valve position sensor for proper operation and replace if necessary.
- Use a multimeter to test the voltage output from the ECM to the EGR valve to ensure the correct 5-volt reference voltage is being supplied.
- Reset the fault code and test drive the vehicle to verify that the issue has been resolved.
Cost to Fix P1403 Dodge
The cost of repairing a missing 5-volt reference voltage to the EGR valve on a Dodge vehicle can vary depending on the specific cause of the issue. Typically, the parts needed for this repair, such as fuses, wiring harnesses, sensors, or an ECM, can range from $50 to $500. Labor costs at an auto repair shop can vary between $100 and $300, depending on the labor rates and the complexity of the repair. It is advisable to consult with a professional mechanic to get an accurate estimate for the repair based on your vehicle's make and model.
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