Audi Workshop Service and Repair Manuals

Note:

The engine speed signal is taken from contact 6 on the engine control unit. This signal is required for the rev counter on the dash panel insert and for other control units.

Special tools, testers and auxiliary items

• ◆ Hand multimeter V.A.G 1526 or V.A.G 1526 A
• ◆ Adapter set V.A.G 1594
• ◆ Test box V.A.G 1598/22

• ‒ → Connect test box V.A.G 1598/22 to wiring harness for engine control unit.
  =>Page 24-8.
• ‒ Test for open circuit in wiring between dash panel insert and contact 6 on the test box, using current flow diagram

=> Current flow diagrams, Electrical fault finding and Fitting locations binder