Service & Repair Manual

01-56
Output Diagnostic Test Mode
(DTM) (function 03)
Notes:
Output Diagnostic Test Mode (DTM) is only
possible with engine idle and ignition switched
on.
Output Diagnostic Test Mode (DTM) is aborted
if engine is started or an RPM signal is
recognized.
In output Diagnostic Test Mode (DTM),
individual actuators (with the exception of the
fuel injectors) are activated for approximately 1
minute unless the next actuator is selected
earlier by pressing the " button.
Actuators are checked either acoustically or by
touch.
The electric Fuel Pump (FP) runs during all of
output Diagnostic Test Mode (DTM).
Engine must be started before repeating output
Diagnostic Test Mode (DTM). (ECM must
recognize an engine speed of above 300 RPM).
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(
DTM
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(
function 03
)
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