Audi Workshop Service and Repair Manuals

With the ignition on and engine not running, the following operation can be performed in the "Basic setting" mode (function 04):

• ◆ Adaption of throttle valve control part to engine control unit
  

With the engine running, the following operations can be performed in the basic setting mode:

• ◆ Learning process for lambda control
• ◆ Fault-finding by deliberate activation and deactivation of lambda control=> Page 24-72

Requirements for operations performed with the engine running:

• ● No faults stored in fault memory
• ● Coolant temperature at least 80 °C
• ● Electrical consumers switched off (radiator fan must not run during the test)

Test sequence

• ‒ Connect vehicle diagnostic, testing and information system VAS 5051 (or fault reader V.A.G 1551) and select engine electronics control unit by entering address word "01" ( => Page 01-3.)
  When doing this the engine must be idling.
• ‒ Interrogate and erase fault memory => Page 01-9.
• ‒ Leave engine idling.

• ‒ Enter "04" to select "Basic setting" and confirm with Q key.

• ‒ Enter the required Display Group number.

Example:

• ‒ Enter "000" to select Display Group number 000 and confirm entry with Q key.

Note:

When the display group is selected the ACF valve is closed and the air conditioner compressor is switched off.

Notes:

• ◆ In Display Group 000 the measured values are shown in decimal form.
• ◆ If the printer is switched on, the current display can be printed out.
• ◆ Other display groups can be selected as follows:

• ‒ If all the display zones show the specified values, press the ⇒ key.