Vauxhall Workshop Service and Repair Manuals

No.

TECH 1 Display

Conditions for Checking

Nominal Value

Trouble Codes

Terminal

01

SELECT PROGRAM.

INIT. ECU

Ignition On

Engine Off

Press key F7 in the system main menu, select the desired test using the arrow keys and confirm with

.Follow the instructions in the TECH 1 display

-

-

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".

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.

EXISTING ECU

PART - NO / AC

XXXXXXX / XX

OKAY?

EXISTING ECU

INIT. - CODING

XXXXXXX OKAY?

If the question is answered with "No", the sub - menu on the right appears in TECH 1.

Selection of the menu item FO: 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.

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 the control unit presumes that it is installed in a vehicle with manual transmission after reprogramming.

INIT. - CODING

FO: RESET

F1: CHANGE

If the display on the right appears after programming, an invalid programming code has been entered. Programming should be repeated with a valid code.

PROGRAMMING ECU

INIT. - CODING

XXXXXXX

INVALID CODE!

If the display on the right appears after programming is completed, programming was successful.

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

PROGRAMMING ECU

INIT. - CODING

SUCCESSFUL!

PROGRAMMING ECU

INIT. - CODING FAILED!