relay AUDI A4 2000 B5 / 1.G Brakes Output DTM 03 Workshop Manual

01-149


Output Diagnostic Test Mode
(DTM) (function 03)
Output Diagnostic Test Mode (DTM) is used to
check the function of actuators. Actuators are
also called actors. These are components that
the control module activates when it reacts to the
signals sent by sensors.
"Function of actuators" includes all functions and
properties of an actuator under operating
conditions. This means, for example:

- An electrically operated hydraulic valves that
opens and closes when activated by the control
module.

- The relay of an electrical motor when activated
by the control module. The motor switches on
and carry outs the task.
Before initiating the output Diagnostic Test Mode
(DTM), make sure there are no electrical
malfunctions in the system you wish to test. This
will enable you to recognize any mechanical
problems. Perform a guided troubleshooting
before starting output Diagnostic Test Mode
(DTM) page 01
-19
.
Are you sure there are no electrical malfunctions
in the system? If you have made sure that there
are no electrical malfunctions in the system, you
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