P2380: EGR Sensor D Circuit

What it means

The module detects an electrical fault in the EGR sensor D circuit. It sets the code when the circuit signal or electrical response is outside its expected operating conditions.

How it works

EGR sensor D provides a signal the control module uses to assess an EGR-related condition; its exact role varies by vehicle. The module monitors the sensor's electrical response. This code sets when that response falls outside the expected operating conditions, which can result from a wiring fault, poor power or ground, a connector problem, or a failed sensor.

Common causes

Most likely first.

1. Open or short in sensor wiring
2. Faulty EGR sensor D
3. Loose or corroded connector
4. Poor sensor power or ground

Symptoms

• Check engine light
• Possible rough idle or hesitation
• Possible reduced power

How to diagnose it

1. Record freeze-frame data and scan for related EGR codes to see when sensor D's circuit fault appeared.
2. Locate EGR sensor D using vehicle service information and inspect its connector and wiring for looseness, corrosion, heat damage, or chafing.
3. Check the sensor's power, ground, and signal circuit using the wiring diagram and manufacturer's specifications.
4. If wiring and connections pass, compare sensor D's live reading with expected behavior during an appropriate EGR operating test.
5. Test or replace sensor D only if circuit checks pass and its signal remains outside the specified operating conditions.

Common fixes

• Reconnect or secure the EGR sensor D connector.
• Repair damaged or shorted sensor D wiring.
• Clean or replace corroded connector terminals.
• Restore a poor sensor power or ground connection.
• Replace EGR sensor D if it fails the specified electrical or response test.

Can I keep driving?

If the engine runs normally, short trips are generally reasonable while you arrange diagnosis. Reduce driving if hesitation or power loss becomes pronounced, since EGR operation and emissions may be affected.