Engine Control Module (ECM) coding, checking Audi A8 D2

Engine Control Module (ECM) coding, checking

If vehicle coding information is not as specified

1. Replace ECM. NOTE: Vehicle information is "hard coded" into the ECM. Service coding of the ECM is not possible. Coding versions may be checked (only) using the VAG1551 or VAG1552 Scan Tool (ST). While checking coding versions, the 5-digit ECM code must always be displayed.
2. Connect VAG1551 or VAG1552 Scan Tool (ST) and press buttons -0- and -1- to insert "Engine Electronics" address word 01 (ignition switched on). See VAG1551 OR VAG1552 SCAN TOOL (ST), CONNECTING AND SELECTING "ENGINE ELECTRONICS" ADDRESS WORD 01 .

Indicated on display

V.A.G 1551 Scan Tool Display - Checking Engine Control Module (ECM) Coding (1 Of 3). Scheme 51

1. Press -Q- button to confirm input. Indicated on display (ECM identification and coding) see scheme 56: V.A.G 1551 Scan Tool Display - Checking Engine Control Module (ECM) Coding (2 Of 3) ECM CODING AND MODEL Coding Model 01273 A8 4.2 liter, engine code ABZ 01153 A8 3.7 liter, engine code AEW
2. Advance program sequence by pressing button.

Indicated on display

V.A.G 1551 Scan Tool Display - Checking Engine Control Module (ECM) Coding (3 Of 3). Scheme 52

1. Press buttons -0- and -6- to select "End Output" (scan tool function 06), and press -Q- button to confirm input.