Accessing OBD
In addition to A/C system On Board Diagnostic (OBD) using the VAG1551 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.