Volkswagen Workshop Service and Repair Manuals

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

• ◆ Fault reader V.A.G 1551 or vehicle system tester V.A.G 1552 with cable V.A.G 1551/3

Test conditions

• ● 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 automatic gearbox the selector lever must be in "P" or "N" position.
• ● No faults must be stored in fault memory , interrogating and erasing fault memory.
• ● Coolant temperature must be at least 85 °C, =>display group 1, display zone 2.

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 01-5 .)

• ‒ 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 0 is an example, to illustrate the sequence.

• ‒ Press keys 0, 0 and 0 for "Display group number 0" 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 output" function and confirm input with the Q key.

• ‒ Switch off ignition.

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.