Diagrama Electrico Jetta A3 20 Full ((top)) -

Controls performance circuits including the Mass Air Flow (MAF) sensor, throttle valve, and ignition. Relay Plate & Fuses:

full electrical diagram for the Volkswagen Jetta A3 (1993–1999) with the 2.0L ABA engine is a critical tool for troubleshooting systems like the Motronic engine management, ignition, and fuel delivery. These diagrams use a "track" format, which tracks the electrical flow vertically across pages. Key Components of the 2.0L ABA Diagram The 2.0L engine wiring integrates the Engine Control Unit (ECU) with essential sensors and actuators to manage performance: Engine Management (Motronic): diagrama electrico jetta a3 20 full

| Relé | Descripción | |---|---| | R1 | Aire acondicionado | | R2 | Sistema de limpia/lava luneta trasera | | R3 | Unidad de control del motor | | R4 | Ignición (encendido) | | R5 | No utilizado | | R6 | Intermitentes/direccionales | | R7 | Lavafaros | | R8 | Limpia/lava parabrisas delantero | | R9 | Cinturones de seguridad | | R10 | Luz antiniebla | | R11 | Bocina | | R12 | Bomba de combustible | | R13 | Calentador del colector de admisión | | R14 | No utilizado | | R15 | Bomba ABS | | R16 | Luz de marcha atrás (Ecomatic) | | R17 | Luz de carretera (Ecomatic) | | R18 | Luz de cruce (Ecomatic) | | R19 | Aire acondicionado Climatronic 2.0/2.8 (1993) (fusible 30A) | | R20 | Interruptor de bloqueo de arranque | | R21 | Sensor de oxígeno | | R22 | Indicador de cinturón de seguridad | | R23 | Bomba de vacío (Ecomatic) | | R24 | Elevalunas eléctricos (fusible térmico 20A) | Controls performance circuits including the Mass Air Flow