SEAT Workshop Service and Repair Manuals

All functions which could previously be performed with V.A.G 1551/1552 can also be performed with the new tester VAS 5051 in the operating mode vehicle self-diagnosis.

=> Operating instructions for Vehicle Diagnosis, Testing and Information System VAS 5051.

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

• ◆ → VAS 5051 Vehicle Diagnosis, Testing and Information System
• ◆ Diagnosis cable VAS 5051/1 or VAS 5051/3

Test conditions:

• ● → All fuses must be OK.

• ◆ The battery voltage must be at least 11.5 V.

• ● Earth connection between engine and body must be OK.
• ● All electrical consumers, e.g. lights and rear window heating must be switched off.
• ● If the vehicle is equipped with an air conditioning system, this must be switched off.

• ● Selector lever must be in position "P" on vehicles with an automatic gearbox.

Connecting VAS 5051

• ‒ → Connect connector of diagnosis cable VAS 5051/1 or VAS 5051/3 to diagnostic connection.

After the fault reader has been connected:

• ‒ Depending upon desired function:
  Switch ignition on
      or
  Start engine , Table "Selectable functions".

Selecting operating mode:

• ‒ Press button on display for "Vehicle self-diagnosis".

Selecting vehicle system:

• ‒ Press button "01 - Engine electronics" on display.

The control unit identification is indicated on the display.

Note:

• ◆ Replace control unit if the control unit version displayed does not correspond to the vehicle
  => Page 24-108.

Selecting diagnosis function:

All diagnostic functions available are indicated on the display.

• ‒ Press button on display for desired function.

Notes:

The display zones in functions 04 - Basic setting or 08 - Read measured value block are shown from top to bottom.

The following test sequences are for fault reader V.A.G 1551.

Connecting V.A.G 1551

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

• ◆ V.A.G 1551 Fault reader
• ◆ V.A.G 1551/3 Cable

Note:

The vehicle system tester V.A.G 1552 can be used instead of the fault reader V.A.G 1551, however a print-out is not possible.

Work sequence

• ‒ Connect fault reader V.A.G 1551 using cable V.A.G 1551/3.

After the fault reader has been connected:

• ‒ Depending upon desired function:
  Switch ignition on
      or
  Start engine => Page 01-4, Table "Selectable functions".

Notes:

• ◆ If the display remains blank, check voltage supply for diagnostic connection according to fault finding programme:

=> Current flow diagrams, Electrical fault finding and Fitting locations binder

• ◆ If the display does not indicate as described in the work sequence:

=> Fault reader operating instructions

• ◆ If due to an input fault "Fault in the data transfer!" is displayed, pull wire off fault reader, reconnect and repeat work step.

* Appears alternately

• ‒ Operate fault reader taking into account the information on the display:
• ‒ Press key 1 for "Rapid data transfer".
• ‒ Press keys 0 and 1 for address word "Engine electronics" and confirm entry with Q key.

• ◆ 06A 906 032 AJ = Part No. of the control unit (for latest control unit version see parts catalogue)
• ◆ 2.0 ltr. = Engine displacement
• ◆ R4/2V = Engine configuration (4-Cyl. in-line engine, 2-valve)
• ◆ HS = Manual gearbox (hand change)
  AT = Automatic gearbox
• ◆ M6 = Manual 6-speed gearbox
• ◆ G = Cruise control system enabled activated
• ◆ 3463 = Programme level number
• ◆ Coding xxxxx = not relevant

• ◆ WSC xxxxx = Workshop code (WSC 00000 appears until the factory settings of the data are changed)

• ‒ Press ⇒key.

• ‒ Further measures see repair procedures.