Ford
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    DPF EGR Sensor Upstream Hose Off or Plugged Conditions
Cause:
    Engine running, then the PCM detected a sensor signal that indicated EGR flow in a negative direction with EGR valve commanded closed

GM
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    Exhaust Gas Recirculation Error (EGR Solenoid 3) Conditions
Cause:
    ECT over 183°F, gear selector in 1st or 2nd gear, vehicle in coast-down mode, HO2S-11 signal over 566 mv, VSS over 20 mph, A/C Clutch on, engine speed at 1000-1488 rpm, then the PCM detected that engine rpm did not drop 4 out of 5 times in the test

Mazda
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    Differential pressure feedback sensor - upstream hose off or plugged
Cause:
    Mechanical fault

Toyota
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    Turbocharger (TC) pressure sensor - circuit malfunction
Cause:
    Wiring, TC pressure sensor, ECM