EGR Sensor D Circuit Low
Same as P2381 but with the signal voltage below the plausible lower limit - typically the signal line shorted to ground or an internal sensor short.
Affected components
- Egr sensor d
- Egr sensor wiring d
Common causes
- High likelihood: Signal line shorted to ground
- Medium likelihood: Sensor internal short
- Low likelihood: Connector pins corroded - high contact resistance
Possible symptoms
- Check engine light on
- Pinging or knocking under load
- Power loss and hesitation
- Possible rough idle
- Failed emissions inspection (NOx)
Diagnostic notes
- The malfunction indicator lamp may illuminate
- This code can affect emissions
Related codes
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.