P0487 - Exhaust Gas Recirculation Throttle Control Circuit A Open

The ECM detected an open circuit in EGR throttle control circuit A.

Code Overview

The ECM detected an open circuit in EGR throttle control circuit A.

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

Use test results to confirm the fault before pricing the repair.

Related OBD Codes

Browse the closest code-family pages when the same fault pattern often shows up nearby.

Next Steps

Move from the code to a diagnosis path, then into repair pricing once the fault is confirmed.