Work sequence
- Connect scan tool VAG1551 (VAG1552) and select Engine Control Module (ECM) with the "Address word" 01. Engine must be running at idle: (Connecting scan tool and selecting Engine Control Module (ECM) → VAG1551 and Motronic Engine Control Module (ECM) J220, connecting and selecting ).
Indicated on display:
| Rapid data transfer HELP Select function XX |
- Press buttons 1 and 5 for function "Readiness code" and confirm entry with Q button.
Must appear on display when all diagnosis functions have been successfully completed:
Indicated on display:
| Readiness code → 00000000 - Test complete |
- Press → button.
- Press buttons 0 and 6 for function "End output" and confirm entry with Q button.
- Switch off ignition.
Appears on display:
| Readiness code → 00101101 - Test not complete |
One of the diagnostic checks has not run through successfully:
- Press → button.
- Generate readiness code → Generating readiness code .
Significance of figures in 8 digit number block, display zone 1 - Readiness code
| The readiness code is generated only when all display zones show 0 | ||||||||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | Diagnostic function |
| 0 | Three Way Catalytic Converter (TWC) | |||||||
| 0 | Three Way Catalytic Converter (TWC) heating (currently no diagnosis/always "0") | |||||||
| 0 | Evaporative Emissions (EVAP) Canister system (Tank ventilation system) | |||||||
| 0 | Secondary air system | |||||||
| 0 | Air conditioner (currently no diagnosis/always "0") | |||||||
| 0 | Oxygen Sensor (O2S)s | |||||||
| 0 | Oxygen Sensor (O2S) heating | |||||||
| 0 | Exhaust gas recirculation (not installed/always "0") | |||||||