Chrysler
Type:
    Powertrain - Auxiliary Emission Controls - ISO/SAE Controlled
Description:
    EGR Position Sensor Low Input Conditions
Cause:
    Key on or engine running, system voltage more than 10v, then the PCM detected that the EGR position sensor signal was less than 0.157v for six seconds.

Generic
Type:
    Powertrain - Auxiliary Emission Controls - ISO/SAE Controlled
Description:
    Exhaust Gas Recirculation Sensor "A" Circuit Low

GM
Type:
    Powertrain - Auxiliary Emission Controls - ISO/SAE Controlled
Description:
    EGR Position Sensor Circuit Low Input Conditions
Cause:
    Engine running, EGR Position sensor VREF from 4-5v, then the PCM detected that the EGR Feedback signal voltage was less than 0 12v, condition met for 10 seconds

Nissan
Type:
    Powertrain - Auxiliary Emission Controls - ISO/SAE Controlled
Description:
    Exhaust gas recirculation temperature (EGRT) sensor - low voltage
Cause:
    Wiring, EGRT sensor, ECM