Display Group 009

NOTE: The oxygen sensor control should always be evaluated only after successful learning (learning requirement display, display group 007 and/or 008, display field 4) in both "Basic Setting" function 04 and "Read Measuring Value Block" function 08.

Test table display group 009

Notes on display field 3:
- The evaporative emissions valve (EVAP canister valve) is closed during the learning process.
- The effect of the EVAP canister can be evaluated by comparing the display value during "Basic Setting" (EVAP canister completely closed: 99%) and during "Read Measuring Value Block" (EVAP canister valve completely open: 0%).
- You can switch back and forth between "Basic Setting" function 04 and "Read Measuring Value Block" function 08 by pressing buttons -1- and -3- on VAG 1551 scan tool.