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 MANUALSVOLKSWAGEN2003PASSAT SEDAN (3B3) L4-1.8L TURBO (AWM)REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSTESTING AND INSPECTIONSCAN TOOL TESTING AND PROCEDURESREAD MEASURING VALUE BLOCKS (FUNCTION 08)EVALUATING MEASURING VALUE BLOCKSDISPLAY GROUPS 30-49, 99, 107 (OXYGEN SENSOR CONTROL)
2003 Volkswagen Passat Sedan (3B3) L4-1.8L Turbo (AWM)
Display Groups 30-49, 99, 107 (Oxygen Sensor Control)
2003 Volkswagen Passat Sedan (3B3) L4-1.8L Turbo (AWM)SECTION Display Groups 30-49, 99, 107 (Oxygen Sensor Control)
Measuring Value Blocks, Evaluating, Display Groups 30 To 49, 99 -Oxygen Sensor Control-
Display Group 30:
Meaning of 3 digit number block in display fields 1 and 2:
Display Group 32:
Evaluation display group 32, display fields 1 and 2 - oxygen sensor adaptation values
Display Group 32, Display Fields 1 - 2, Part 1:
Display Group 32, Display Fields 1 - 2, Part 2:
Display Group 33:
Display Group 34:
Engine code ATW, note for display fields 3 and 4:
Period duration is the time between oxygen sensor voltage jumps (e.g. rich - lean) and is therefore a measurement of the aging condition of the oxygen sensor. If the specified time is exceded, display field 4 will indicate = B1-S1 not OK.
Display Group 36:
Evaluation display group 36, display field 1 - sensor voltage of oxygen sensor behind catalytic converter
Display Group 36, Display Field 1:
Display Group 37:
Display Group 41:
Display Group 43:
Display Group 46:
Display Group 99:
Display Group 107:
RENDER: 1.0x
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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.