Work sequence
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 1999 Volkswagen Jetta, 1999 Volkswagen GTI, 1998 Volkswagen Jetta, 1998 Volkswagen GTI, and 1997 Volkswagen Jetta. However, it is still accessible from the selected car via links, so may be relevant.
- Connect the VAG 1551/1552 scan tool and with ignition switched on select "Engine Electronics" address word 01: see VAG 1551 SCAN TOOL (ST), CONNECTING AND SELECTING "ENGINE ELECTRONICS" ADDRESS WORD 01 .
Indicated on display
- Press buttons -1- and -1- to select "Login-Procedure" function 11 and press -Q- button to confirm input.
Indicated on display
- Press buttons -0-, -1-, -2-, -8- and -3- to input log-in code 01283 and press -Q- button to confirm input.
Indicated on display
- Press buttons -0- and -7- to select "Code Control Module" function 07 and press -Q- button to confirm input.
Indicated on display
- Enter the appropriate code number for this vehicle and press -Q- button to confirm input.ECM CODING
Coding For following vehicles 00000 Golf/GTI/Jetta VR6 with manual transmission 00001 Golf/GTI/Jetta VR6 with automatic transmission
The VAG 1551 scan tool display will show the control module identification; for example:
- Press --> button.
Indicated on display
- Press buttons -0- and -6- to select "End Output" function 06 and press -Q- button to confirm input.
NOTE:
The code entered and shown on the display will not be used by the Engine Control Module (ECM) until the ignition has been switched off once. An incorrect coding leads to:
- Engine running malfunctions
- Increased fuel consumption
- Increased emissions
- Malfunctions stored in Diagnostic Trouble Code (DTC) memory which are not actually present
- Reduced transmission life