Coding procedure
- Connect VAG1551/VAG1552 Scan Tool (ST) and press buttons -0- and -1- to insert "Engine Electronics" address word 01 (ignition switched on). See «VAG1551/VAG1552 SCAN TOOL (ST), CONNECTING AND SELECTING "ENGINE ELECTRONICS" ADDRESS WORD 01»(/audi/a6/c5-2001-2004/remont/testing-diagnostics/#on-board-diagnostic-obd-28l-v6-aha__vag1551vag1552-scan-tool-st-connecting-and) .
Indicated on display
VAG Scan Tool Display - Code Control Module, Scan Tool Function 07 (1 Of 5). Scheme 124
- Press buttons -0- and -7- to select "Code Control Module" function 07, and press -Q- button to confirm input.
Indicated on display
VAG Scan Tool Display - Code Control Module, Scan Tool Function 07 (2 Of 5). Scheme 125
- Input applicable code number for vehicle, and press -Q- button to confirm input. See «ECM CODING VARIATIONS»(/audi/a6/c5-2001-2004/remont/testing-diagnostics/#on-board-diagnostic-obd-28l-v6-aha__ecm-coding-variations) .
If indicated on display
VAG Scan Tool Display - Code Control Module, Scan Tool Function 07 (3 Of 5). Scheme 126
Incorrect code number has been entered.
Indicated on display (ECM identification and coding, e.g. 06052)
VAG Scan Tool Display - Code Control Module, Scan Tool Function 07 (4 Of 5). Scheme 127
- Press --> button to advance through program sequence.
Indicated on display
VAG Scan Tool Display - Code Control Module, Scan Tool Function 07 (5 Of 5). Scheme 128
- Press buttons -0- and -6- to select "End Output" function 06, and press -Q- button to confirm input.
Note. The Motronic ECM -J220- only uses the code that has been entered after the ignition has been switched off once. Incorrect coding leads to
- Performance problems (e.g. jerky shifting, abrupt load changes, etc.)
- Increased fuel consumption
- Elevated exhaust gas values
- Storage of non-existent malfunctions in DTC memory
- Reduction in transmission service life