Field Remedy: 1884
| Subject: | Engine Y30DT with automatic transmission - Jerking at constant speed driving or slight tip in of accelerator pedal between 1200 - 1700 rpm |
|---|
| Models: | Engines: | Option: |
|---|---|---|
| Signum 2003...2005,Vectra-C 2003...2005 | Y30DT,Y30DT | AT |
| Complaint: | Jerking at constant speed driving or slight tip in of accelerator pedal between 1200 - 1700 rpm , mainly in 5th gear at ca. 80 km/h. |
|---|---|
| Cause: | Variation of the fuel injection quantity after break in phase of the injectors. |
| Production: | Improved Software will be introduced in production in July 2005. |
Remedy:
In case of customer complaint reprogram Transmission Control Unit (TCM) with TIS 2000-CD, as of version 64. The modified TCM software will set the converter lock up point from now 76 km/h up to a higher speed range, this will eliminate steady state jerk as well as tip in jerk.
Note: During software-download the option "Seriendatenstand/Serial Data set" has to be chosen and deleted. Then press button "continue" and choose the software "Feldabhilfe/Field Remedy 1884".
Note: It is essential to choose the correct TCM software for vehicles with and without trailer hitch.
| FunctionalGroup: | J - Engine |
|---|---|
| Complaint Group: | 19 - Poor Engine Driveability |
| Trouble Code: | None |