No.
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TECH 1-Display
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Conditions
for Checking
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Nominal
Value
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Trouble
Codes
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Terminal
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01
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SELECT
ADJUSTMN IDLE SPEED
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Note:
Before adjusting the idle speed
and thus reprogramming the fixed values, it is useful if the amount that the
engine speed is going to be increased or decreased is known, as once
adjustment is completed, communication is broken off and has to be re -
established from scratch. If the newly programmed idle speed does not then
suit the requirements, the whole procedure has to be repeated. It is simpler
to first establish the desired idle speed increase or decrease using the
"engine speed" test described in "F8: ECU control", and
then program this fixed value using the adjustment procedure described below.
Ignition ON
Engine OFF
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-
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-
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Press key F6 in the system
main menu, select the desired test using the arrow keys and confirm with YES.
Follow the instructions in the
TECH 1 display.
Note:
The idle speed can now be
changed using the arrow keys:
· Arrow
key up: engine speed increases in 3 steps of 50 rpm each
· Arrow
key down; offset can be reduced again in steps of 50
The set idle speed is confirmed
with Enter.
When the ignition is switched
off and on again after programming is completed, the new idle speed is stored
in the EEPROM.
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Ignition OFF
Ignition ON
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If the display on the right
appears after programming is completed, the programming was successful. The
engine should then be started and the relevant data list parameter selected
at idle speed (engine speed). The idle speed displayed must correspond to the
adjusted value.
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IDLE
SPEED OFFS. UPDATE SUCCESSFUL!
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If, however, the display on the
right appears after programming is completed, a fault has occurred during
programming. Carry out the following measures consecutively:
· Read
out trouble codes
· Repeat
programming
· Carry
out TECH 1 self - test
· Check
TECH 1 cable for damaged insulation and shielding
· Reprogram
with new control unit
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IDLE
SPEED OFFS. UPDATE FAILED!
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If the display on the right
appears after selection Of the test, it is not possible to perform the
selected function for the current control unit.
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FUNCTION NOT AVAILABLE!
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Notes on Trouble - shooting:
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Nominal Value:
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Cause of Fault:
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· See
F0: DATA LIST, test steps 45 to 56
· See
Table 1; ALDL Diagnostic Plug, Voltage Supply and Auxiliary Fan for
Electronics Box, Check Test steps 1 to 10
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