VAG1551 Scan Tool (ST), connecting and selecting "Engine Electronics" address word 01

WARNING: This page is about a different variant/trim than selected.

Special tools and equipment

Fig 1: VAG 1551 Scan Tool

Courtesy of VOLKSWAGEN UNITED STATES, INC.

VAG1551 Scan Tool (ST)

NOTE:

If VAG1551 Scan Tool is not available, use VAG1552 Mobile Scan Tool instead, although this tool cannot produce a print-out.
All functions of the VAG1551/1552 scan tools can also be performed using the new VAS5051 tester. Connect VAS5051. Refer to VAS5051 tester, connecting and selecting "Engine Electronics" vehicle system 01 .

Fig 2: V.A.G 1551/3

Courtesy of VOLKSWAGEN UNITED STATES, INC.

VAG 1551/3 wire

Test requirements

Fig 3: Identifying Main Fuse Panel

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Fuses no. 5, 10, 13, 28, 29, 32, 34 and 43 must be OK.
Battery voltage must be at least 11.5 volts.
Ground (GND) connections between engine and chassis must be OK.

Work procedure

Fig 4: Identifying Scan Tool VAG 1551 And DLC

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Connect VAG1551 Scan Tool using VAG1551/3 adapter.

After Scan Tool is connected:

Depending on desired function:

switch on ignition

start engine. Refer to Selectable functions when using VAG1551/1552 or VAS5051 , table "Selectable functions".

NOTE:

If nothing is indicated on the display, check voltage supply of diagnostic cable:

Refer to Electrical Wiring Diagrams, Troubleshooting & Component Locations

If the indications shown in the work procedure are not obtained on the display:

Refer to Scan Tool operating instructions

If "Malfunction in data transfer!" is indicated due to entry error, disconnect wire at scan tool, reconnect and perform work steps again.

Operate scan tool according to indications on display:

V.A.G - ON BOARD DIAGNOSTIC HELP
1 - Rapid data transfer*
2 - Blink code output*

Indicated on display

* Two operating modes are displayed alternately

Operate scan tool according to indications on display:
Press button 1 to select "Rapid data transfer" operating mode 1.
Press buttons -0- and -1- to select "Engine electronics" address word 01. Press -Q- button to confirm input.

06A906032CM 1.8L R4/5VT G 0001 "
Coding 06530 WSC 00000

Display will indicate the control module identification and the coding, e.g.:

06A 906 032 CM = Part No. of control module (for current control module version, see parts catalog)
1.8 l = Engine displacement
R4/5VT = Construction style of engine (inline engine, 4 cylinder, 5 valves, turbo)
G = cruise control enabled

0001 = Program version number
Coding xxxxx = coding of control module, coding version of Engine Control Module (ECM). Refer to Engine Control Module, coding variations .
WSC xxxxx = Factory identification from VAG1551, with which the last coding was performed (if factory coding has not been changed, WSC 00000 will be displayed)

NOTE: If the control module version that is appropriate for this vehicle is not indicated, replace the control module. Refer to Engine Control Module (ECM), replacing .

An incorrect coding of the Engine Control Module (ECM) causes:

Driveability problems (shifting pressure, tip-in shock etc.)
increased fuel consumption
increased emissions values
The storage of non-existent malfunctions in DTC memory

Necessary functions not being performed (oxygen sensor regulation, activation of the EVAP canister system, etc.)
Reduction in transmission service life

If coding differs from vehicle version:

Check control module coding. Refer to Code control module (scan tool function 07) , Code Engine Control Module
Press → button.

Rapid data transfer HELP
Select function XX

Indicated on display

See repair procedures for further steps.