Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSVOLKSWAGEN2004PASSAT GLS 4MOTION, 4D SEDAN, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTANTI-THEFT SYSTEMSELECTRICAL EQUIPMENT ON BOARD DIAGNOSTIC (OBD) THROUGH SEPTEMBER 200001 ON BOARD DIAGNOSTIC (OBD)INSTRUMENT CLUSTER 08.99 >, ON BOARD DIAGNOSTIC (OBD)CONTROL MODULE VERSIONS, CHECKING(FUNCTION 01)AVAILABLE FUNCTIONS
2004 Volkswagen Passat GLS 4Motion, 4D Sedan, Standard
Available functions
2004 Volkswagen Passat GLS 4Motion, 4D Sedan, StandardSECTION Available functions
| Function | Page | |
| 01 - | Check Control Module Versions | Control module version, checking |
| 02 - | Check Diagnostic Trouble Code (DTC) Memory | Diagnostic Trouble Code (DTC) Memory, checking (function 02) |
| 03 - | Output Diagnostic Test Mode (DTM) | Output Diagnostic Test Mode (DTM) (function 03) |
| 05 - | Erase DTC Memory | Diagnostic Trouble Code (DTC) Memory, erasing (function 05) |
| 06 - | End Output | End Output (function 06) |
| 07 - | Code Control Module | Instrument cluster, coding, function 07) |
| 08 - | Read Measuring Value Block | Read Measuring Value Block (function 08) |
| 10 - | Adaptation | Adaptation (function 10) |
NOTE:
- Press the HELP button to print out a complete list of available functions. This list indicates the function capability of the VAG 1551 Scan Tool (ST) only, and does not necessarily reflect the function capability of vehicle systems equipped with OBD. For instrument cluster address word 17, do not attempt to select functions other than those listed above.
- After the function is completed and forwarded with the → button, the VAG 1551 Scan Tool (ST) returns to the following start position:
| Rapid data transfer HELP Select function XX |
Indicated on display (select function):
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.