SEAT Workshop Service and Repair Manuals

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

Test conditions

• ● Coolant temperature must be at least 80 °C, =>display group 04, display zone 3.
• ● 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.
• ● No faults must be stored in fault memory
  , interrogating fault memory

Work sequence

• ‒ Connect fault reader V.A.G 1551 (V.A.G 1552). Start engine and select "Address word" 01 of engine control unit. When doing this the engine must be running at idling speed.
  (Connecting fault reader and selecting engine control unit => Page 01-9.)

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

• ‒ Select required display group number.

Note:

The display group number 1 is an example, to illustrate the sequence.

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

Note:

To change to another display group proceed as follows:

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

• ‒ Press keys 0 and 6 for the "End data transfer" function and confirm input 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.