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Conditions for Checking
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Nominal Value
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Affected terminals: -
Possible trouble codes: -
Ignition ON
Engine OFF
Press key F7 in the system main
menu, use the arrow keys to select the desired test and confirm with YES.
Follow the instructions in the TECH 1 display.
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When asked whether the correct
control unit is installed, proceed according to the information on the
preceding page or in the latest "Technical Information Bulletin".
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EXISTING
ECU
PART-NO
/ AC
XXXXXXX
/ XX
OKAY?
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For the display on the right,
proceed likewise according to the information on the preceding page or in the
latest "Technical Information Bulletin".
If the question is answered with
"YES", the control unit will be reprogrammed with the programming
code shown in the display. Note that when the control unit is reprogrammed,
it presumes that it is installed in a vehicle with manual transmission. For
vehicles with automatic transmission, therefore, shift at least once from
"P" or "N" to "D" and back again with ignition
ON after programming. The control unit is then aware that it is installed in
a vehicle with automatic transmission.
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EXISTING
ECU
INIT.
- CODING
XXXXXXX
OKAY?
|
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If the question is answered with
"NO", the sub-menu on the right appears in TECH 1.
Selection of the menu item
F0:RESET programs the control unit with the basic application.
Note that the control unit
presumes that it is installed in a vehicle with manual transmission after
reprogramming.
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INIT.
- CODING
F0:RESET
F1:CHANGE
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By selecting menu item
F1:CHANGE, it is possible to reprogram the control unit to any desired code.
At present, however, only the code for the basic application is permitted.
Further codes and their applications will be published in the relevant
"Technical Information Bulletins TI". This procedure will be used
in the future for any performance improvements that are required (previously
various coloured RON coding plugs). In addition, note that the control unit
assumes that it is installed in a vehicle with manual transmission after
reprogramming.
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If the display on the right
appears after programming, an invalid programming code has been entered.
Programming should be repeated with a valid code.
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PROGRAMMING
ECU
INIT.
- CODING
XXXXXXX
INVALID
CODE!
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If the display on the right
appears after programming is completed, programming was successful.
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PROGRAMMING
ECU
INIT.
- CODING
SUCCESSFUL!
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If the display on the right
appears after programming, a fault has occurred during programming. The
following measures should be carried out consecutively:
Read out trouble codes; no
trouble codes should be stored;
Repeat programming;
Perform TECH 1 self-test;
Check TECH 1 cable for
damaged insulation and shielding;
Repeat programming with new
SIMTEC control unit
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PROGRAMMING
ECU
INIT.
- CODING
FAILED!
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