Contents Wiring diagrams Section: On Board Diagnostic (OBD) All sections

Test requirement Audi A4 B6

On Board Diagnostic (OBD) 3 illustrations ~108 words

Test requirement

  1. All fuses OK

See appropriate System Wiring Diagrams article

  1. VAG 1598/11 adapter cable and VAG 1598/12 connected to disconnected harness connectors of A/C Control Head -E87-.

Scheme 201

Scheme 201: Procedure

Scheme 202

Scheme 202
  1. Select operating mode "Test instrument" on VAS 5051 Vehicle Diagnostic, Testing and Information System
  2. Select during the variable test steps the required test instrument types, by clicking the relevant button on VAS 5051 display.

Electrical tests (to be performed on A/C Control Head -E87-) overview

Note. A variety of information is sent via the CAN-bus comfort system, no electrical testing applies for this information, see READ MEASURING VALUE BLOCK (FUNCTION 08) .

Scheme 203

Scheme 203