volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

ECM Identification, Connecting VAG 1551/1552 Scan Tool|Page 2754 > < CAN-Bus, Checking|Page 2751
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Engine Control Module: Service and Repair
ECM Identification, Connecting VAG 1551/1552 Scan Tool

Address word 01: "engine electronics"

Special tools, workshop equipment, testers, measuring instruments and auxiliary items required:

-

VAG 1551 Scan Tool

NOTE:  The VAG 1552 Scan Tool can he used instead of the VAG 1551; however the VAG 1552 is not equipped with a printer!

-

VAG 1551/3 Connecting Cable

Test conditions:

-

Battery voltage OK

-

Fuse 12 OK

-

Engine and transmission Ground connections OK

Work sequence:

-

Connect VAG 1551/1552 using VAG 1551/3 adaptor cable.

Display will appear as shown

VAG On Board Diagnostic

HELP 

1 - Rapid data transfer*
2 - Blink code output*

* Appears alternately

NOTE:  If the display remains blank, See Scan Tool operating instructions.

After Scan Tool has been connected:

-

Depending upon desired function:
Switch ON ignition 

or

ECM Identification, Connecting VAG 1551/1552 Scan Tool|Page 2754 > < CAN-Bus, Checking|Page 2751