P0490 - Exhaust Gas Recirculation Throttle Control Circuit A High

The EGR throttle control circuit A signal is higher than expected.

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Common Next Steps

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Related Inspection

Code Overview

The EGR throttle control circuit A signal is higher than expected.

Common Causes

• EGR throttle or sensor fault
• Damaged wiring or connector
• Carbon buildup or sticking components

Diagnostic Steps

1. Inspect the throttle or sensor connector and wiring
2. Check command and feedback data if supported
3. Inspect for sticking or carbon buildup

Likely Repairs & Cost Guides

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Related OBD Codes

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Next Steps

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