Output Diagnostic Test Mode (DTM) (function 03) (engine codes AUX, AKB): Notes

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2003 Audi S8, 2003 Audi A8, 2002 Audi S8, 2002 Audi A8, and 2001 Audi A8. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

The DTM can only be performed with the ignition switched ON and the engine not running.
The DTM is terminated if the engine is started or if an engine speed pulse is detected.
During the DTM, individual control elements will be activated for approx. 1 minute, or until the test program is advanced to the next control element by pressing the --> button.
The control elements can be tested either by listening or by touching.
The electric fuel pump runs continuously throughout the DTM.
If the DTM is to be repeated, the engine must be started. The engine control module needs to detect an engine speed of more than 300 rpm.

The DTM activates the following components in the stated sequence:

EVAP canister purge regulator valve -N80-
Secondary Air Injection (AIR) Solenoid Valve -N112-
Secondary Air Injection (AIR) Pump Relay -J299-
Intake Manifold Change -Over Valve -N156-
Valve -1- for camshaft adjustment -N205- and Valve -2- for camshaft adjustment -N208-
Leak Detection Pump for EVAP system
Intake Manifold Tuning (IMT) Valve -N261-
Left engine mount 1 (driving direction)
Right engine mount 2 (driving direction)
Cylinder 1 Fuel Injector -N30-
Cylinder 5 Fuel Injector -N83-
Cylinder 4 Fuel Injector -N33-
Cylinder 8 Fuel Injector -N86-
Cylinder 6 Fuel Injector -N84-
Cylinder 3 Fuel Injector -N32-
Cylinder 7 Fuel Injector -N85-
Cylinder 2 Fuel Injector -N31-

For component location of actuators, see COMPONENT LOCATIONS, OVERVIEW .