SEAT Workshop Service and Repair Manuals > Leon Mk2 > Engine, mixture preparation | Diesel direct injection and glow plug system | Self diagnosis, V.A.G Inspection Service | Self-diagnosis

Diesel direct injection and glow plug system

Self-diagnosis

Reading measured value block

Special tools, testers, measuring instruments and auxiliary items required

Test conditions

● Coolant temperature must be at least 80 °C.
● All electrical consumers like e.g. rear window heating must be switched off.
● If the vehicle is equipped with an air conditioner, this must be switched off.
● On vehicles with an automatic gearbox the selector lever must be in P or N.
● No faults must be stored in fault memory
, interrogating fault memory

Work sequence

‒ Connect fault reader V.A.G 1551 (V.A.G 1552) and select engine electronics control unit with the "Address word" 01. When doing this the engine must be running at idling speed.
(Connecting fault reader and selecting engine electronics control unit => Page 01-4.)

→ Indicated on display:

Rapid data transfer HELP

Select function XX

‒ Press keys 0 and 8 for the function "Read measured value block" and confirm entry with Q key.

→ Indicated on display:

Read measured value block HELP

Input display group number XXX

Note:

The display group number 001 is an example, to illustrate the sequence.

‒ Press keys 0, 0 and 1 for "Display group number 1" and confirm entry with Q key.

→ Indicated on display:
(1...4 = Display zones)

Read measured value block 1 ⇒

1 2 3 4

→ Indicated on display:

Rapid data transfer HELP

Select function XX

‒ Press keys 0 and 6 for the function "End output" and confirm entry with the Q key.

Note:

To change to another display group proceed as follows:

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