EGR position sensor (EGRPOS), short circuit to battery.
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 high.
Possible cause
Short circuit to battery (U30).