№ files_lp_4_process_2_49693
Technical specification describing voltage behavior, connector pinout, and vehicle compatibility of BOSCH mass air flow sensor model 0280218063 used in several Audi and Volkswagen vehicles produced between 2000 and 2006.
Component: Mass Air Flow Sensor (MAF)
Manufacturer: BOSCH
Part Number: 0280218063
Connector Part Number: 1J0973775A
Voltage Output Range: 1–5 V
Zero Air Flow Voltage: 0.98–1.02 V
Power Supply: 12 V battery power and 5 V reference from ECM
Ground Source: ECM internal ground
Connector Configuration: 5 slots (some vehicles use 4 slots with one empty)
Pin 5 Function: MAF signal output
Pin 4 Function: 5 V reference from ECM
Pin 3 Function: Ground from ECM
Pin 2 Function: 12 V battery power
Pin 1 Function: Air temperature sensor circuit (may be unused on some sensors)
Supported Vehicles: Audi A4, Audi A4 Quattro, Audi TT, Audi TT Quattro AWP, Volkswagen Beetle, Volkswagen Golf, Volkswagen Jetta, Volkswagen Passat
Engine Displacement: 1.8L (some Audi TT variants listed as all engines)
Vehicle Production Years: 2000–2006 depending on model
Detected Condition: Reverse airflow from intake manifold to air filter indicated by output voltage below 1 V
Field: Automotive engineering / engine management systems
Intended Audience: Automotive technicians and service personnel
Price: 8 / 10 USD
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