Work sequence

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

Fig 1: Identifying Scan Tool Display - Function 07 (Rapid Data Transfer)

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.

Fig 2: Identifying Scan Tool Display - Function 07 (Login-Procedure)

Indicated on display

Fig 3: Identifying Scan Tool Display - Function 07 (Rapid Data Transfer)

Press buttons -0- and -7- to select "Code Control Module" function 07 and press -Q- button to confirm input.

Indicated on display

Fig 4: Identifying Scan Tool Display - Function 07 (Code Control Module)

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:

Fig 5: Identifying Scan Tool Display - Function 07 (Sample ECM Coding)

Press --> button.

Indicated on display

Fig 6: Identifying Scan Tool Display - Function 07 (Rapid Data Transfer)

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