Selectable Functions (Modes) Under Address Word 33, CARB/OBD II

Selectable Functions (Modes) Under Address Word 33, CARB/OBD II

Modes under address word 33:
- Mode 1: Transmit diagnostic data Switch ignition on or let engine run at idle
- Mode 2: Transmit operating conditions Switch ignition on or let engine run at idle
- Mode 3: Check DIG Memory Switch ignition on or let engine run at idle
- Mode 4: Erase diagnostic data Switch ignition on or let engine run at idle
- Mode 5: Output of oxygen sensor signals Switch ignition on or let engine run at idle
- Mode 6: Transmit measured values Switch ignition on or let engine run at idle
- Mode 7: Check DTC Memory Switch ignition on or let engine run at idle

- Modes 1 to 7 can be selected under address word 33.
- Individual measured values can be read out via mode 1. Mode 1 is not recommended for authorized Audi dealerships, since this data can be obtained much more accurately via address word 01/function 04 or function 08.
- Mode 2 displays operating conditions, for which a malfunction was recognized.
- With mode 3, DTC memory is checked and with mode 4, DTC memory (diagnostic data) is erased.
- Mode 5 displays the static values of the oxygen sensors, which are legally required. Since these values are not directly relevant to oxygen sensor diagnostics, mode 5 is also insignificant for the authorized Audi dealerships.
- Under mode 6, all measured values can be checked from components and systems that are not constantly monitored.
- Using mode 7, DTCs can be checked for which the Malfunction Indicator Lamp (MIL) is not yet lit (MIL is not on, no DTCs under mode 3)