P1403 Chrysler Code - 5 volt reference voltage to EGR valve missing
Quick Answer
The P1403 diagnostic trouble code (DTC) for Chrysler vehicles indicates that there is a problem with the 5-volt reference voltage being sent to the exhaust gas recirculation (EGR) valve. Common causes include Damaged wiring or connectors, Faulty EGR valve, Issues with the EGR 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 Chrysler indicates 5 volt reference voltage to EGR valve missing.
- Common causes
- Common causes include Damaged wiring or connectors, Faulty EGR valve, Issues with the EGR 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 Chrysler Description
The P1403 diagnostic trouble code (DTC) for Chrysler vehicles indicates that there is a problem with the 5-volt reference voltage being sent to the exhaust gas recirculation (EGR) valve. The EGR valve plays a crucial role in reducing emissions by recirculating a portion of the exhaust gases back into the engine's intake system. The 5-volt reference voltage is necessary for the EGR valve to properly function and regulate the flow of exhaust gases.
Common Causes of P1403 Chrysler
- Damaged wiring or connectors
- Faulty EGR valve
- Issues with the EGR sensor
- Problem with the powertrain control module (PCM)
- Corrosion or debris affecting electrical connections
Symptoms of P1403 Chrysler
- Rough idling
- Stalling
- Hesitation during acceleration
- Increased emissions
- Engine misfires
How to Fix P1403 Chrysler
- Begin by performing a thorough inspection of the wiring and connectors related to the EGR system to check for any damage or corrosion.
- Test the EGR valve and sensor to determine if they are functioning properly. Replace any faulty components as needed.
- Check the 5-volt reference voltage output from the PCM to the EGR valve and ensure it is within the specified range.
- Clear the DTC from the vehicle's memory using a diagnostic scanner after completing the repair.
- Perform a test drive to verify that the issue has been resolved and that the vehicle's performance has returned to normal.
Cost to Fix P1403 Chrysler
The cost of repairing a P1403 code on a Chrysler vehicle can vary depending on the specific cause of the issue and the labor rates charged by auto repair shops. On average, the repair cost for this issue can range from $100 to $300, including parts and labor. It's important to note that diagnosis time and labor rates can vary, so it's recommended to obtain estimates from local auto repair shops to get a more accurate cost estimate.
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