Wiring And Components

Special Tools And Workshop Equipment Required

Test Adapter - Isolator Box 1 - Breakout Box with Detachable Terminals (198 pins) VAS 6606/1-1
Test Adapter - Isolator Box 1 - Breakout Box with Detachable Terminals (198 pins) VAS 6606/1-2
Test Adapter - Isolator Box 1 - Breakout Box with Detachable Terminals (198 pins) VAS 6606/1-3
Template VAS 6606/1-1
Template VAS 6606/2-1
Template VAS 6606/3-1
Test Adapter for ECU (1.0m) VAS 6606/7-1 and Test Adapter for ECU (1.7m) VAS 6606/7-2.

NOTE:

Always make sure the cables are connected correctly.

Never use any damaged or worn tools or accessories.

See operating instructions.

-- Connect both the Test Adapter for ECU (1.0m) VAS 6606/7-1 and Test Adapter for ECU (1.7m) VAS 6606/7-2 completely to the three Breakout Box w/Detachable Terminals VAS 6606.

-- Use the following sheets:

Label for module 1, Cod. A+B Template - Isolator Box VAS 6606/1-1 for the Test Adapter - Isolator Box 1 VAS 6606/1
Isolator Box - Module 2 Template VAS 6606/2-1 for the Test Adapter - Isolator Box 1 - Breakout Box with Detachable Terminals (198 pins) VAS 6606/1-2
Template - Isolator Box VAS 6606/3-1 for the Test Adapter - Isolator Box 1 - Breakout Box with Detachable Terminals (198 pins) VAS 6606/1-3

NOTE:

Make sure all connection bridges are connected completely on all breakout boxes.

-- Connect the Ground (GND) wire to a breakout box and to a GND point on the vehicle.

-- Remove the Engine Control Module (ECM), refer to REMOVING .

-- Connect the ECM to the Test Adapter for ECU (1.0m) VAS 6606/7-1.

-- Connect the wiring harness from the vehicle to the Test Adapter for ECU (1.7m) VAS 6606/7-2.

The connection on the ECM consists of a large and small connector.

The large connector has 105 pins and is assigned from "A 1 through A 105" on the breakout box sheet.

The smaller connector has 91 pins and is assigned from "B 1 through B 91" on the breakout box sheet.

The connection will get interrupted when the connection bridge is disconnected.

NOTE:

The "In contact" -1- (red socket) goes to the ECM.

The "Out contact" -2- (blue socket) goes to the wiring harness.

Fig 1: "In Contact" -1- (Red Socket) And "Out Contact" -2- (Blue Socket)

Courtesy of AUDI OF AMERICA, LLC

-- Perform test as described in relevant repair sequences.

Installing the ECM

Install in reverse order of removal.

The procedures to follow after connecting the new ECM are described in Guided Fault Finding and Guided Functions. Use a Vehicle Diagnostic Tester.

NOTE:

When ending Guided Fault Finding, the tester attempts to erase the Diagnostic Trouble Code (DTC) memory of all control modules. If this is not successful, the remaining DTCs stored in memory must be corrected until all DTCs can be erased.