Audi Workshop Service and Repair Manuals > A4 Mk2 > Heating, ventilation, air conditioning system | Air conditioning | Self diagnosis, V.A.G Inspection Service | Electrical checks on air conditioner | Wiring and component check using test box V.A.G 1598A | Connecting test box V.A.G 1598A to connectors to operating and display unit, Climatronic control unit J255

Pin assignment of test box V.A.G 1598A with adapter cable V.A.G 1598/11 > < Special tools, testers and other items required

Connecting test boxV.A.G 1598A to connectors to operating and display unit, Climatronic control unitJ255

Connecting test box -V.A.G 1598A- to connectors to operating and display unit, Climatronic control unit -J255-

–	Switch off ignition.

–	Remove operating and display unit, Climatronic control unit -J255- → Chapter.

–	Connect adapter cable -V.A.G 1598/11- and adapter cable -V.A.G 1598/12- to unplugged connectors of operating and display unit, Climatronic control unit -J255-.

Note

t	Do not connect operating and display unit, Climatronic control unit -J255-.

t	For measurement, connect the test box -V.A.G 1598A- to the relevant adapter cable.

t	The assignment of the sockets on the adapter cable -V.A.G 1598/12- is identical to the pin assignment of the operating and display unit, Climatronic control unit -J255-.

t	The assignment of the sockets on the adapter cable -V.A.G 1598/11- is not identical to the pin assignment of the operating and display unit, Climatronic control unit -J255- → Chapter.

A87-0016

Heating, ventilation, air conditioning system
Air conditioning / Self diagnosis, V.A.G Inspection Service
Electrical checks on air conditioner / ring_and_component_check_using__test_box_v.a.g_1598a/">Wiring and component check using test box V.A.G 1598A
Connecting test box V.A.G 1598A to connectors to operating and display unit, Climatronic control unit J255

Pin assignment of test box V.A.G 1598A with adapter cable V.A.G 1598/11 > < Special tools, testers and other items required