Engine Control Module

Special tools and workshop equipment required

Work Sequence

-- Print out the ECM identification (and thereby the previous ECM coding) as follows:

-- Connect VAG1551 / VAG1552 scan tool VAG 1551/VAG 1552, CONNECTING .

-- Press -0- and -1- buttons to select address word 01: "Engine electronics"

Display will appear as shown (I.D. example only):

038906018M 1.9l R4 EDC 00AG 1813 →
Coding 0001 WSC XXXXX

-- Press Scan Tool print button to print out ECM identification.

-- Press → button.

Display will appear as shown:

Rapid data transfer HELP
Select function XX

-- Press -0- and -6- buttons to select function 06: "End output"

-- Press Q button to enter input.

Display will appear as shown:

Rapid data transfer HELP
Select function XX

-- Switch OFF ignition.

-- Remove inner covers on plenum. Removal and Installation

-- Carefully pry off retainer bar with screwdriver (arrow).

Fig 1: Prying Off Retainer Bar

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Release harness connector from Engine Control Module (ECM) and pull off.

-- Insert new ECM and press to the left.

-- Tighten nut for ground wire (located in front of ECM) to 9 ± 1 Nm (80 ± 9 in. lb)

-- Check previous ECM coding and coding of new ECM ENGINE CONTROL MODULE, CODING .

-- Check DTC memory of new ECM, erase if necessary DTC MEMORY, CHECKING .

-- Adapt new control module to immobilizer Diagnosis and Testing