A/C Control Head on-Board Diagnostic (OBD) Display, Checking

A/C Control Head On-Board Diagnostic (OBD) Display, Checking

In addition to A/C system On-Board Diagnostic (OBD) using the VAG 1551 Scan Tool (ST), the A/C control head contains a 61-channel OBD display which can be accessed without the use of special tools.

Starting display

- switch ignition ON or start engine

- press and hold down RECIRCULATION button 1

- press and hold down upper AIR DISTRIBUTION button 2

- release both buttons

^ "01c" will be displayed ("01c" indicates channel 1, "02c" indicates channel 2, etc.)

To select a different channel,

- press temperature + button to go to next higher channel

- press temperature - button to go to next lower channel

To call up information about a particular channel,

- select desired channel

- press RECIRCULATION button 1

To leave memory display,

- press AUTO button, or

- switch ignition OFF