seat Workshop Repair Guides

SEAT Workshop Service and Repair Manuals

Self-diagnosis > < Definitions
Motronic injection and ignition system
Measured value blocks
Read measured value block

The measured values in the functions read measured value block and basic setting are described during the individual component test. This table serves only as an overview.

Special tools, testers, measuring instruments and auxiliary items required

  • ◆ Fault reader V.A.G 1551 with cable V.A.G 1551/3

Test conditions

  • ● Coolant temperature must be at least 80 °C.
  • ● All electrical consumers, e.g. lights and 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

Note:

To change to another display group proceed as follows:

Display group

V.A.G 1551

V.A.G 1552

Higher

Press key 3

Press ↑key

Lower

Press key 1

Press ↓key

Skip

Press key C

Press key C

  • ‒ If the specifications in all display zones are obtained, press ⇒key.
 
→ 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:

Measured value blocks which are not described in this chapter are currently only intended for the research and development and production. The values displayed are not relevant for service department fault finding.

Self-diagnosis > < Definitions