EGR position sensor (EGR2POS), short circuit to ground or open load
â–¶ How to fix
Check the sensor. Check the connectors and wiring to the control block.
What you'll see
No driver-visible symptom recorded.
System reaction
The control unit will try to use a very rough control of the EGR-valve but most likely the valve will be uncontrollable due to the electrical error. Most EGR diagnostic disabled. EGR adaptation disabled. EGR valve will use open loop control and will therefore be less accurate.
Diagnostic depth
Detection
The voltage has been too low.
Possible cause
Short circuit to ground (U31) or open load to output signal or supply.