P0490 Chrysler Code - Exhaust Gas Recirculation Throttle Control Circuit 'A' Circuit High
Quick Answer
The P0490 code for Chrysler vehicles indicates a problem with the Exhaust Gas Recirculation (EGR) throttle control circuit 'A', specifically a high voltage issue. Common causes include Faulty EGR throttle control valve, Wiring or connector issues in the EGR throttle control circuit, EGR valve stuck open. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0490 Chrysler indicates Exhaust Gas Recirculation Throttle Control Circuit 'A' Circuit High.
- Common causes
- Common causes include Faulty EGR throttle control valve, Wiring or connector issues in the EGR throttle control circuit, EGR valve stuck open.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code P0490 Chrysler Description
The P0490 code for Chrysler vehicles indicates a problem with the Exhaust Gas Recirculation (EGR) throttle control circuit 'A', specifically a high voltage issue. The EGR system is responsible for recirculating a portion of the exhaust gases back into the engine intake to reduce emissions and improve fuel efficiency. The throttle control circuit 'A' is a crucial component that regulates the flow of exhaust gases into the engine.
Common Causes of P0490 Chrysler
- Faulty EGR throttle control valve
- Wiring or connector issues in the EGR throttle control circuit
- EGR valve stuck open
- Carbon buildup in the EGR system
- PCM (Powertrain Control Module) failure
Symptoms of P0490 Chrysler
- Check Engine Light illuminated on the dashboard
- Reduced fuel efficiency
- Rough idling
- Engine hesitation
- Engine stalling
How to Fix P0490 Chrysler
- Begin by diagnosing the EGR throttle control circuit 'A' using a scan tool to confirm the P0490 code.
- Inspect the EGR throttle control valve for proper operation and replace if necessary.
- Check the wiring and connectors in the EGR system for any damage or corrosion, repairing or replacing as needed.
- Clean the EGR system of any carbon buildup that may be obstructing proper operation.
- If all else fails, consider replacing the PCM to address any internal faults causing the high voltage issue.
Cost to Fix P0490 Chrysler
The typical repair costs for addressing the P0490 code in a Chrysler vehicle can range from $200 to $500, including parts and labor. However, the specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It's recommended to check local rates for a more accurate estimate before proceeding with repairs.
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