VAG 1551 Scan Tool (ST), Connecting and Selecting 'Engine Electronics' Address Word 01
VAG 1551 Scan Tool (ST), Connecting and Selecting 'Engine Electronics' Address Word 01
Special Tools, Testers And Auxiliary Items
- VAG 1551/1552 Scan Tool With VAG 1551/3 Adapter Cable.
Note: The VAG 1552 scan tool can be used instead of the VAG 1551 scan tool, however a print-out is not possible.
Test conditions
- Fuse 21 OK
- Battery voltage at least 11 volts
- Ground connections on engine and transmission OK.
Work Sequence
- Open ashtray and remove, then slide cover for diagnostic connections to left (arrow).
- Connect VAG 1551/1552 scan tool with VAG 1551/3 adapter cable.
Depending upon desired function:
- Switch ignition on, or start engine Engine Control Module functions.
Note: - If the display does not show as indicated in the work sequence: See VAG 1551 scan tool operating instructions.
- If due to an input malfunction "Error in communication link" is displayed, disconnect wire from VAG 1551/1552 scan tool, reconnect and repeat work step.
Indicated On Display 1
V.A.G.- On Board Diagnostic (OBD) HELP
1-Rapid data transfer
2-Blink code output
- Operating modes 1 and 2 are displayed alternately.
Operate Vag 1551/1552 Scan Tool taking into account the information on the display:
- Press -1- button to select "Rapid data transfer" operating mode 1.
- Press buttons -0- and -1- to select "Engine Electronics" address word 01 and press -Q- button to confirm.
The VAG 1551 scan tool display will show the ECM identification, e.g.:
037 906 259B MOTRONIC M5.9 AT V02-->
Coding 0003 WSC xxxxx
- 037 906 259B = Part no. of the ECM (for latest control module version See parts catalog microfiche).
- MOTRONIC M5.9 = Injection and ignition system.
- AT V02 = Automatic transmission with Motronic system version 02.
- HS V02 = Manual transmission with Motronic system version 02.
- Coding 00003 = Coding variants
- WSC = Workshop code
CODING VARIANTS:
MY APPLICATION Coding
>1999 Golf/Jetta, manual trans. TIER 1 00000
>1999 Golf/Jetta, auto trans. TIER 1 00001
>1999 Golf/Jetta, manual trans. TLEV 00004
>1999 Golf/Jetta, auto trans. TLEV 00005
>1999 Cabrio, manual trans. 00002
>1999 Cabrio, auto trans. 00003
2000> Cabrio, manual trans. TLEV 00004
2000> Cabrio, auto trans. TLEV 00005
Note: Correct control module number details and coding are only given at idle speed.
If the coding differs from the vehicle version, then:
- Check control module coding: Scan Tool Function 07.
- Press -> button.
Indicated on display
Rapid data transfer HELP
Select function XX
- For additional steps see repair procedures.