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Wiring Diagrams Audi A4 B9 (2015-2020)

33 systems 162 wiring diagrams 1398 components
Contents — 33 systems, 162 diagrams
Air conditioning
Anti-lock brakes
Anti-theft
Body control modules
Computer data lines
Cooling fan
Cruise control
Defoggers
Electronic power steering
Electronic suspension
Engine performance 2.0l turbo
Exterior lights
Ground distribution
Headlights
Horn
Instrument cluster
Interior lights
Memory systems
Navigation
Power distribution
Power door locks
Power mirrors
Power seats
Power top/sunroof
Power windows
Radio
Shift interlock
Starting/charging
Supplemental restraints
Transmission
Trunk, tailgate, fuel door
Warning systems
Wiper/washer

Air conditioning

# Automatic a/c circuit, w/ climatronic

# Automatic a/c circuit, w/ climatronic (1 of 3)

Air conditioning — Automatic a/c circuit, w/ climatronic — Automatic a/c circuit, w/ climatronic (1 of 3). Audi A4 B9 (2015-2020)
Components on the diagram

    # Automatic a/c circuit, w/ climatronic (2 of 3)

    Air conditioning — Automatic a/c circuit, w/ climatronic — Automatic a/c circuit, w/ climatronic (2 of 3). Audi A4 B9 (2015-2020)
    Components on the diagram

      # Automatic a/c circuit, w/ climatronic (3 of 3)

      Air conditioning — Automatic a/c circuit, w/ climatronic — Automatic a/c circuit, w/ climatronic (3 of 3). Audi A4 B9 (2015-2020)
      Components on the diagram

        # Automatic a/c circuit, w/o climatronic

        # Automatic a/c circuit, w/o climatronic (1 of 4)

        Air conditioning — Automatic a/c circuit, w/o climatronic — Automatic a/c circuit, w/o climatronic (1 of 4). Audi A4 B9 (2015-2020)
        Components on the diagram

          # Automatic a/c circuit, w/o climatronic (2 of 4)

          Air conditioning — Automatic a/c circuit, w/o climatronic — Automatic a/c circuit, w/o climatronic (2 of 4). Audi A4 B9 (2015-2020)
          Components on the diagram

            # Automatic a/c circuit, w/o climatronic (3 of 4)

            Air conditioning — Automatic a/c circuit, w/o climatronic — Automatic a/c circuit, w/o climatronic (3 of 4). Audi A4 B9 (2015-2020)
            Components on the diagram

              # Automatic a/c circuit, w/o climatronic (4 of 4)

              Air conditioning — Automatic a/c circuit, w/o climatronic — Automatic a/c circuit, w/o climatronic (4 of 4). Audi A4 B9 (2015-2020)
              Components on the diagram

                Anti-lock brakes

                # Anti-lock brakes circuit

                # Anti-lock brakes circuit (1 of 3)

                Anti-lock brakes — Anti-lock brakes circuit — Anti-lock brakes circuit (1 of 3). Audi A4 B9 (2015-2020)
                Components on the diagram

                  # Anti-lock brakes circuit (2 of 3)

                  Anti-lock brakes — Anti-lock brakes circuit — Anti-lock brakes circuit (2 of 3). Audi A4 B9 (2015-2020)
                  Components on the diagram

                    # Anti-lock brakes circuit (3 of 3)

                    Anti-lock brakes — Anti-lock brakes circuit — Anti-lock brakes circuit (3 of 3). Audi A4 B9 (2015-2020)
                    Components on the diagram

                      Anti-theft

                      # Access/start circuit

                      Anti-theft — Access/start circuit — Access/start circuit. Audi A4 B9 (2015-2020)
                      Components on the diagram

                        # Forced entry circuit

                        # Forced entry circuit (1 of 6)

                        Anti-theft — Forced entry circuit — Forced entry circuit (1 of 6). Audi A4 B9 (2015-2020)
                        Components on the diagram

                          # Forced entry circuit (2 of 6)

                          Anti-theft — Forced entry circuit — Forced entry circuit (2 of 6). Audi A4 B9 (2015-2020)
                          Components on the diagram

                            # Forced entry circuit (3 of 6)

                            Anti-theft — Forced entry circuit — Forced entry circuit (3 of 6). Audi A4 B9 (2015-2020)
                            Components on the diagram

                              # Forced entry circuit (4 of 6)

                              Anti-theft — Forced entry circuit — Forced entry circuit (4 of 6). Audi A4 B9 (2015-2020)
                              Components on the diagram

                                # Forced entry circuit (5 of 6)

                                Anti-theft — Forced entry circuit — Forced entry circuit (5 of 6). Audi A4 B9 (2015-2020)
                                Components on the diagram

                                  # Forced entry circuit (6 of 6)

                                  Anti-theft — Forced entry circuit — Forced entry circuit (6 of 6). Audi A4 B9 (2015-2020)
                                  Components on the diagram

                                    Body control modules

                                    # Comfort system central control module circuit

                                    Body control modules — Comfort system central control module circuit — Comfort system central control module circuit. Audi A4 B9 (2015-2020)
                                    Components on the diagram

                                      # Steering column electronic systems control module circuit

                                      Body control modules — Steering column electronic systems control module circuit — Steering column electronic systems control module circuit. Audi A4 B9 (2015-2020)
                                      Components on the diagram

                                        # Vehicle electrical system control module circuit

                                        # Vehicle electrical system control module circuit (1 of 2)

                                        Body control modules — Vehicle electrical system control module circuit — Vehicle electrical system control module circuit (1 of 2). Audi A4 B9 (2015-2020)
                                        Components on the diagram

                                          # Vehicle electrical system control module circuit (2 of 2)

                                          Body control modules — Vehicle electrical system control module circuit — Vehicle electrical system control module circuit (2 of 2). Audi A4 B9 (2015-2020)
                                          Components on the diagram

                                            Computer data lines

                                            # Computer data lines circuit

                                            # Computer data lines circuit (1 of 7)

                                            Computer data lines — Computer data lines circuit — Computer data lines circuit (1 of 7). Audi A4 B9 (2015-2020)
                                            Components on the diagram

                                              # Computer data lines circuit (2 of 7)

                                              Computer data lines — Computer data lines circuit — Computer data lines circuit (2 of 7). Audi A4 B9 (2015-2020)
                                              Components on the diagram

                                                # Computer data lines circuit (3 of 7)

                                                Computer data lines — Computer data lines circuit — Computer data lines circuit (3 of 7). Audi A4 B9 (2015-2020)
                                                Components on the diagram

                                                  # Computer data lines circuit (4 of 7)

                                                  Computer data lines — Computer data lines circuit — Computer data lines circuit (4 of 7). Audi A4 B9 (2015-2020)
                                                  Components on the diagram

                                                    # Computer data lines circuit (5 of 7)

                                                    Computer data lines — Computer data lines circuit — Computer data lines circuit (5 of 7). Audi A4 B9 (2015-2020)
                                                    Components on the diagram

                                                      # Computer data lines circuit (6 of 7)

                                                      Computer data lines — Computer data lines circuit — Computer data lines circuit (6 of 7). Audi A4 B9 (2015-2020)
                                                      Components on the diagram

                                                        # Computer data lines circuit (7 of 7)

                                                        Computer data lines — Computer data lines circuit — Computer data lines circuit (7 of 7). Audi A4 B9 (2015-2020)
                                                        Components on the diagram

                                                          Cooling fan

                                                          # Cooling fan circuit

                                                          Cooling fan — Cooling fan circuit — Cooling fan circuit. Audi A4 B9 (2015-2020)
                                                          Components on the diagram

                                                            Cruise control

                                                            # Cruise control circuit

                                                            Cruise control — Cruise control circuit — Cruise control circuit. Audi A4 B9 (2015-2020)
                                                            Components on the diagram

                                                              Defoggers

                                                              # Heated windshield circuit

                                                              Defoggers — Heated windshield circuit — Heated windshield circuit. Audi A4 B9 (2015-2020)
                                                              Components on the diagram

                                                                # Rear defogger & heated mirrors circuit

                                                                Defoggers — Rear defogger & heated mirrors circuit — Rear defogger & heated mirrors circuit. Audi A4 B9 (2015-2020)
                                                                Components on the diagram

                                                                  Electronic power steering

                                                                  # Active steering control module circuit

                                                                  Electronic power steering — Active steering control module circuit — Active steering control module circuit. Audi A4 B9 (2015-2020)
                                                                  Components on the diagram

                                                                    # Electromechanical power steering circuit

                                                                    Electronic power steering — Electromechanical power steering circuit — Electromechanical power steering circuit. Audi A4 B9 (2015-2020)
                                                                    Components on the diagram

                                                                      Electronic suspension

                                                                      # Electronic suspension circuit

                                                                      Electronic suspension — Electronic suspension circuit — Electronic suspension circuit. Audi A4 B9 (2015-2020)
                                                                      Components on the diagram

                                                                        Engine performance 2.0l turbo

                                                                        # Wiring diagram engine performance 2.0l turbo, cymc

                                                                        # Wiring diagram engine performance 2.0l turbo, cymc (1 of 10)

                                                                        Engine performance 2.0l turbo — Wiring diagram engine performance 2.0l turbo, cymc — Wiring diagram engine performance 2.0l turbo, cymc (1 of 10). Audi A4 B9 (2015-2020)
                                                                        Components on the diagram

                                                                          # Wiring diagram engine performance 2.0l turbo, cymc (2 of 10)

                                                                          Engine performance 2.0l turbo — Wiring diagram engine performance 2.0l turbo, cymc — Wiring diagram engine performance 2.0l turbo, cymc (2 of 10). Audi A4 B9 (2015-2020)
                                                                          Components on the diagram

                                                                            # Wiring diagram engine performance 2.0l turbo, cymc (3 of 10)

                                                                            Engine performance 2.0l turbo — Wiring diagram engine performance 2.0l turbo, cymc — Wiring diagram engine performance 2.0l turbo, cymc (3 of 10). Audi A4 B9 (2015-2020)
                                                                            Components on the diagram

                                                                              # Wiring diagram engine performance 2.0l turbo, cymc (4 of 10)

                                                                              Engine performance 2.0l turbo — Wiring diagram engine performance 2.0l turbo, cymc — Wiring diagram engine performance 2.0l turbo, cymc (4 of 10). Audi A4 B9 (2015-2020)
                                                                              Components on the diagram

                                                                                # Wiring diagram engine performance 2.0l turbo, cymc (5 of 10)

                                                                                Engine performance 2.0l turbo — Wiring diagram engine performance 2.0l turbo, cymc — Wiring diagram engine performance 2.0l turbo, cymc (5 of 10). Audi A4 B9 (2015-2020)
                                                                                Components on the diagram

                                                                                  # Wiring diagram engine performance 2.0l turbo, cymc (6 of 10)

                                                                                  Engine performance 2.0l turbo — Wiring diagram engine performance 2.0l turbo, cymc — Wiring diagram engine performance 2.0l turbo, cymc (6 of 10). Audi A4 B9 (2015-2020)
                                                                                  Components on the diagram

                                                                                    # Wiring diagram engine performance 2.0l turbo, cymc (7 of 10)

                                                                                    Engine performance 2.0l turbo — Wiring diagram engine performance 2.0l turbo, cymc — Wiring diagram engine performance 2.0l turbo, cymc (7 of 10). Audi A4 B9 (2015-2020)
                                                                                    Components on the diagram

                                                                                      # Wiring diagram engine performance 2.0l turbo, cymc (8 of 10)

                                                                                      Engine performance 2.0l turbo — Wiring diagram engine performance 2.0l turbo, cymc — Wiring diagram engine performance 2.0l turbo, cymc (8 of 10). Audi A4 B9 (2015-2020)
                                                                                      Components on the diagram

                                                                                        # Wiring diagram engine performance 2.0l turbo, cymc (9 of 10)

                                                                                        Engine performance 2.0l turbo — Wiring diagram engine performance 2.0l turbo, cymc — Wiring diagram engine performance 2.0l turbo, cymc (9 of 10). Audi A4 B9 (2015-2020)
                                                                                        Components on the diagram

                                                                                          # Wiring diagram engine performance 2.0l turbo, cymc (10 of 10)

                                                                                          Engine performance 2.0l turbo — Wiring diagram engine performance 2.0l turbo, cymc — Wiring diagram engine performance 2.0l turbo, cymc (10 of 10). Audi A4 B9 (2015-2020)
                                                                                          Components on the diagram

                                                                                            # Wiring diagram engine performance 2.0l turbo, dbpa

                                                                                            # Wiring diagram engine performance 2.0l turbo, dbpa (1 of 9)

                                                                                            Engine performance 2.0l turbo — Wiring diagram engine performance 2.0l turbo, dbpa — Wiring diagram engine performance 2.0l turbo, dbpa (1 of 9). Audi A4 B9 (2015-2020)
                                                                                            Components on the diagram

                                                                                              # Wiring diagram engine performance 2.0l turbo, dbpa (2 of 9)

                                                                                              Engine performance 2.0l turbo — Wiring diagram engine performance 2.0l turbo, dbpa — Wiring diagram engine performance 2.0l turbo, dbpa (2 of 9). Audi A4 B9 (2015-2020)
                                                                                              Components on the diagram

                                                                                                # Wiring diagram engine performance 2.0l turbo, dbpa (3 of 9)

                                                                                                Engine performance 2.0l turbo — Wiring diagram engine performance 2.0l turbo, dbpa — Wiring diagram engine performance 2.0l turbo, dbpa (3 of 9). Audi A4 B9 (2015-2020)
                                                                                                Components on the diagram

                                                                                                  # Wiring diagram engine performance 2.0l turbo, dbpa (4 of 9)

                                                                                                  Engine performance 2.0l turbo — Wiring diagram engine performance 2.0l turbo, dbpa — Wiring diagram engine performance 2.0l turbo, dbpa (4 of 9). Audi A4 B9 (2015-2020)
                                                                                                  Components on the diagram

                                                                                                    # Wiring diagram engine performance 2.0l turbo, dbpa (5 of 9)

                                                                                                    Engine performance 2.0l turbo — Wiring diagram engine performance 2.0l turbo, dbpa — Wiring diagram engine performance 2.0l turbo, dbpa (5 of 9). Audi A4 B9 (2015-2020)
                                                                                                    Components on the diagram

                                                                                                      # Wiring diagram engine performance 2.0l turbo, dbpa (6 of 9)

                                                                                                      Engine performance 2.0l turbo — Wiring diagram engine performance 2.0l turbo, dbpa — Wiring diagram engine performance 2.0l turbo, dbpa (6 of 9). Audi A4 B9 (2015-2020)
                                                                                                      Components on the diagram

                                                                                                        # Wiring diagram engine performance 2.0l turbo, dbpa (7 of 9)

                                                                                                        Engine performance 2.0l turbo — Wiring diagram engine performance 2.0l turbo, dbpa — Wiring diagram engine performance 2.0l turbo, dbpa (7 of 9). Audi A4 B9 (2015-2020)
                                                                                                        Components on the diagram

                                                                                                          # Wiring diagram engine performance 2.0l turbo, dbpa (8 of 9)

                                                                                                          Engine performance 2.0l turbo — Wiring diagram engine performance 2.0l turbo, dbpa — Wiring diagram engine performance 2.0l turbo, dbpa (8 of 9). Audi A4 B9 (2015-2020)
                                                                                                          Components on the diagram

                                                                                                            # Wiring diagram engine performance 2.0l turbo, dbpa (9 of 9)

                                                                                                            Engine performance 2.0l turbo — Wiring diagram engine performance 2.0l turbo, dbpa — Wiring diagram engine performance 2.0l turbo, dbpa (9 of 9). Audi A4 B9 (2015-2020)
                                                                                                            Components on the diagram

                                                                                                              Exterior lights

                                                                                                              # Backup lamps circuit

                                                                                                              Exterior lights — Backup lamps circuit — Backup lamps circuit. Audi A4 B9 (2015-2020)
                                                                                                              Components on the diagram

                                                                                                                # Exterior lamps circuit

                                                                                                                # Exterior lamps circuit (1 of 6)

                                                                                                                Exterior lights — Exterior lamps circuit — Exterior lamps circuit (1 of 6). Audi A4 B9 (2015-2020)
                                                                                                                Components on the diagram

                                                                                                                  # Exterior lamps circuit (2 of 6)

                                                                                                                  Exterior lights — Exterior lamps circuit — Exterior lamps circuit (2 of 6). Audi A4 B9 (2015-2020)
                                                                                                                  Components on the diagram

                                                                                                                    # Exterior lamps circuit (3 of 6)

                                                                                                                    Exterior lights — Exterior lamps circuit — Exterior lamps circuit (3 of 6). Audi A4 B9 (2015-2020)
                                                                                                                    Components on the diagram

                                                                                                                      # Exterior lamps circuit (4 of 6)

                                                                                                                      Exterior lights — Exterior lamps circuit — Exterior lamps circuit (4 of 6). Audi A4 B9 (2015-2020)
                                                                                                                      Components on the diagram

                                                                                                                        # Exterior lamps circuit (5 of 6)

                                                                                                                        Exterior lights — Exterior lamps circuit — Exterior lamps circuit (5 of 6). Audi A4 B9 (2015-2020)
                                                                                                                        Components on the diagram

                                                                                                                          # Exterior lamps circuit (6 of 6)

                                                                                                                          Exterior lights — Exterior lamps circuit — Exterior lamps circuit (6 of 6). Audi A4 B9 (2015-2020)
                                                                                                                          Components on the diagram

                                                                                                                            Ground distribution

                                                                                                                            # Ground distribution circuit

                                                                                                                            # Ground distribution circuit (1 of 4)

                                                                                                                            Ground distribution — Ground distribution circuit — Ground distribution circuit (1 of 4). Audi A4 B9 (2015-2020)
                                                                                                                            Components on the diagram

                                                                                                                              # Ground distribution circuit (2 of 4)

                                                                                                                              Ground distribution — Ground distribution circuit — Ground distribution circuit (2 of 4). Audi A4 B9 (2015-2020)
                                                                                                                              Components on the diagram

                                                                                                                                # Ground distribution circuit (3 of 4)

                                                                                                                                Ground distribution — Ground distribution circuit — Ground distribution circuit (3 of 4). Audi A4 B9 (2015-2020)
                                                                                                                                Components on the diagram

                                                                                                                                  # Ground distribution circuit (4 of 4)

                                                                                                                                  Ground distribution — Ground distribution circuit — Ground distribution circuit (4 of 4). Audi A4 B9 (2015-2020)
                                                                                                                                  Components on the diagram

                                                                                                                                    Headlights

                                                                                                                                    # Headlights circuit, w/ hid

                                                                                                                                    # Headlights circuit, w/ hid (1 of 2)

                                                                                                                                    Headlights — Headlights circuit, w/ hid — Headlights circuit, w/ hid (1 of 2). Audi A4 B9 (2015-2020)
                                                                                                                                    Components on the diagram

                                                                                                                                      # Headlights circuit, w/ hid (2 of 2)

                                                                                                                                      Headlights — Headlights circuit, w/ hid — Headlights circuit, w/ hid (2 of 2). Audi A4 B9 (2015-2020)
                                                                                                                                      Components on the diagram

                                                                                                                                        # Headlights circuit, w/o hid & matrix beam

                                                                                                                                        # Headlights circuit, w/o hid & matrix beam (1 of 2)

                                                                                                                                        Headlights — Headlights circuit, w/o hid & matrix beam — Headlights circuit, w/o hid & matrix beam (1 of 2). Audi A4 B9 (2015-2020)
                                                                                                                                        Components on the diagram

                                                                                                                                          # Headlights circuit, w/o hid & matrix beam (2 of 2)

                                                                                                                                          Headlights — Headlights circuit, w/o hid & matrix beam — Headlights circuit, w/o hid & matrix beam (2 of 2). Audi A4 B9 (2015-2020)
                                                                                                                                          Components on the diagram

                                                                                                                                            # Headlights circuit, w/o hid w/ matrix beam

                                                                                                                                            # Headlights circuit, w/o hid w/ matrix beam (1 of 2)

                                                                                                                                            Headlights — Headlights circuit, w/o hid w/ matrix beam — Headlights circuit, w/o hid w/ matrix beam (1 of 2). Audi A4 B9 (2015-2020)
                                                                                                                                            Components on the diagram

                                                                                                                                              # Headlights circuit, w/o hid w/ matrix beam (2 of 2)

                                                                                                                                              Headlights — Headlights circuit, w/o hid w/ matrix beam — Headlights circuit, w/o hid w/ matrix beam (2 of 2). Audi A4 B9 (2015-2020)
                                                                                                                                              Components on the diagram

                                                                                                                                                Horn

                                                                                                                                                # Horn circuit

                                                                                                                                                Horn — Horn circuit — Horn circuit. Audi A4 B9 (2015-2020)
                                                                                                                                                Components on the diagram

                                                                                                                                                  Instrument cluster

                                                                                                                                                  # Instrument cluster circuit

                                                                                                                                                  # Instrument cluster circuit (1 of 2)

                                                                                                                                                  Instrument cluster — Instrument cluster circuit — Instrument cluster circuit (1 of 2). Audi A4 B9 (2015-2020)
                                                                                                                                                  Components on the diagram

                                                                                                                                                    # Instrument cluster circuit (2 of 2)

                                                                                                                                                    Instrument cluster — Instrument cluster circuit — Instrument cluster circuit (2 of 2). Audi A4 B9 (2015-2020)
                                                                                                                                                    Components on the diagram

                                                                                                                                                      Interior lights

                                                                                                                                                      # Courtesy lamps circuit

                                                                                                                                                      # Courtesy lamps circuit (1 of 5)

                                                                                                                                                      Interior lights — Courtesy lamps circuit — Courtesy lamps circuit (1 of 5). Audi A4 B9 (2015-2020)
                                                                                                                                                      Components on the diagram

                                                                                                                                                        # Courtesy lamps circuit (2 of 5)

                                                                                                                                                        Interior lights — Courtesy lamps circuit — Courtesy lamps circuit (2 of 5). Audi A4 B9 (2015-2020)
                                                                                                                                                        Components on the diagram

                                                                                                                                                          # Courtesy lamps circuit (3 of 5)

                                                                                                                                                          Interior lights — Courtesy lamps circuit — Courtesy lamps circuit (3 of 5). Audi A4 B9 (2015-2020)
                                                                                                                                                          Components on the diagram

                                                                                                                                                            # Courtesy lamps circuit (4 of 5)

                                                                                                                                                            Interior lights — Courtesy lamps circuit — Courtesy lamps circuit (4 of 5). Audi A4 B9 (2015-2020)
                                                                                                                                                            Components on the diagram

                                                                                                                                                              # Courtesy lamps circuit (5 of 5)

                                                                                                                                                              Interior lights — Courtesy lamps circuit — Courtesy lamps circuit (5 of 5). Audi A4 B9 (2015-2020)
                                                                                                                                                              Components on the diagram

                                                                                                                                                                # Instrument illumination circuit

                                                                                                                                                                # Instrument illumination circuit (1 of 4)

                                                                                                                                                                Interior lights — Instrument illumination circuit — Instrument illumination circuit (1 of 4). Audi A4 B9 (2015-2020)
                                                                                                                                                                Components on the diagram

                                                                                                                                                                  # Instrument illumination circuit (2 of 4)

                                                                                                                                                                  Interior lights — Instrument illumination circuit — Instrument illumination circuit (2 of 4). Audi A4 B9 (2015-2020)
                                                                                                                                                                  Components on the diagram

                                                                                                                                                                    # Instrument illumination circuit (3 of 4)

                                                                                                                                                                    Interior lights — Instrument illumination circuit — Instrument illumination circuit (3 of 4). Audi A4 B9 (2015-2020)
                                                                                                                                                                    Components on the diagram

                                                                                                                                                                      # Instrument illumination circuit (4 of 4)

                                                                                                                                                                      Interior lights — Instrument illumination circuit — Instrument illumination circuit (4 of 4). Audi A4 B9 (2015-2020)
                                                                                                                                                                      Components on the diagram

                                                                                                                                                                        Memory systems

                                                                                                                                                                        # Memory mirrors circuit

                                                                                                                                                                        # Memory mirrors circuit (1 of 2)

                                                                                                                                                                        Memory systems — Memory mirrors circuit — Memory mirrors circuit (1 of 2). Audi A4 B9 (2015-2020)
                                                                                                                                                                        Components on the diagram

                                                                                                                                                                          # Memory mirrors circuit (2 of 2)

                                                                                                                                                                          Memory systems — Memory mirrors circuit — Memory mirrors circuit (2 of 2). Audi A4 B9 (2015-2020)
                                                                                                                                                                          Components on the diagram

                                                                                                                                                                            # Memory seat circuit

                                                                                                                                                                            # Memory seat circuit (1 of 2)

                                                                                                                                                                            Memory systems — Memory seat circuit — Memory seat circuit (1 of 2). Audi A4 B9 (2015-2020)
                                                                                                                                                                            Components on the diagram

                                                                                                                                                                              # Memory seat circuit (2 of 2)

                                                                                                                                                                              Memory systems — Memory seat circuit — Memory seat circuit (2 of 2). Audi A4 B9 (2015-2020)
                                                                                                                                                                              Components on the diagram

                                                                                                                                                                                Navigation

                                                                                                                                                                                # Emergency call circuit

                                                                                                                                                                                # Emergency call circuit (1 of 2)

                                                                                                                                                                                Navigation — Emergency call circuit — Emergency call circuit (1 of 2). Audi A4 B9 (2015-2020)
                                                                                                                                                                                Components on the diagram

                                                                                                                                                                                  # Emergency call circuit (2 of 2)

                                                                                                                                                                                  Navigation — Emergency call circuit — Emergency call circuit (2 of 2). Audi A4 B9 (2015-2020)
                                                                                                                                                                                  Components on the diagram

                                                                                                                                                                                    # Lane change assistance circuit

                                                                                                                                                                                    Navigation — Lane change assistance circuit — Lane change assistance circuit. Audi A4 B9 (2015-2020)
                                                                                                                                                                                    Components on the diagram

                                                                                                                                                                                      # Lane departure warning circuit

                                                                                                                                                                                      Navigation — Lane departure warning circuit — Lane departure warning circuit. Audi A4 B9 (2015-2020)
                                                                                                                                                                                      Components on the diagram

                                                                                                                                                                                        # Parking assistant circuit, w/ parallel parking

                                                                                                                                                                                        # Parking assistant circuit, w/ parallel parking (1 of 2)

                                                                                                                                                                                        Navigation — Parking assistant circuit, w/ parallel parking — Parking assistant circuit, w/ parallel parking (1 of 2). Audi A4 B9 (2015-2020)
                                                                                                                                                                                        Components on the diagram

                                                                                                                                                                                          # Parking assistant circuit, w/ parallel parking (2 of 2)

                                                                                                                                                                                          Navigation — Parking assistant circuit, w/ parallel parking — Parking assistant circuit, w/ parallel parking (2 of 2). Audi A4 B9 (2015-2020)
                                                                                                                                                                                          Components on the diagram

                                                                                                                                                                                            # Parking assistant circuit, w/o parallel parking

                                                                                                                                                                                            # Parking assistant circuit, w/o parallel parking (1 of 2)

                                                                                                                                                                                            Navigation — Parking assistant circuit, w/o parallel parking — Parking assistant circuit, w/o parallel parking (1 of 2). Audi A4 B9 (2015-2020)
                                                                                                                                                                                            Components on the diagram

                                                                                                                                                                                              # Parking assistant circuit, w/o parallel parking (2 of 2)

                                                                                                                                                                                              Navigation — Parking assistant circuit, w/o parallel parking — Parking assistant circuit, w/o parallel parking (2 of 2). Audi A4 B9 (2015-2020)
                                                                                                                                                                                              Components on the diagram

                                                                                                                                                                                                # Peripheral camera circuit

                                                                                                                                                                                                Navigation — Peripheral camera circuit — Peripheral camera circuit. Audi A4 B9 (2015-2020)
                                                                                                                                                                                                Components on the diagram

                                                                                                                                                                                                  # Rear camera circuit

                                                                                                                                                                                                  Navigation — Rear camera circuit — Rear camera circuit. Audi A4 B9 (2015-2020)
                                                                                                                                                                                                  Components on the diagram

                                                                                                                                                                                                    Power distribution

                                                                                                                                                                                                    # Power distribution circuit

                                                                                                                                                                                                    # Power distribution circuit (1 of 6)

                                                                                                                                                                                                    Power distribution — Power distribution circuit — Power distribution circuit (1 of 6). Audi A4 B9 (2015-2020)
                                                                                                                                                                                                    Components on the diagram

                                                                                                                                                                                                      # Power distribution circuit (2 of 6)

                                                                                                                                                                                                      Power distribution — Power distribution circuit — Power distribution circuit (2 of 6). Audi A4 B9 (2015-2020)
                                                                                                                                                                                                      Components on the diagram

                                                                                                                                                                                                        # Power distribution circuit (3 of 6)

                                                                                                                                                                                                        Power distribution — Power distribution circuit — Power distribution circuit (3 of 6). Audi A4 B9 (2015-2020)
                                                                                                                                                                                                        Components on the diagram

                                                                                                                                                                                                          # Power distribution circuit (4 of 6)

                                                                                                                                                                                                          Power distribution — Power distribution circuit — Power distribution circuit (4 of 6). Audi A4 B9 (2015-2020)
                                                                                                                                                                                                          Components on the diagram

                                                                                                                                                                                                            # Power distribution circuit (5 of 6)

                                                                                                                                                                                                            Power distribution — Power distribution circuit — Power distribution circuit (5 of 6). Audi A4 B9 (2015-2020)
                                                                                                                                                                                                            Components on the diagram

                                                                                                                                                                                                              # Power distribution circuit (6 of 6)

                                                                                                                                                                                                              Power distribution — Power distribution circuit — Power distribution circuit (6 of 6). Audi A4 B9 (2015-2020)
                                                                                                                                                                                                              Components on the diagram

                                                                                                                                                                                                                Power door locks

                                                                                                                                                                                                                # Power door locks circuit

                                                                                                                                                                                                                # Power door locks circuit (1 of 6)

                                                                                                                                                                                                                Power door locks — Power door locks circuit — Power door locks circuit (1 of 6). Audi A4 B9 (2015-2020)
                                                                                                                                                                                                                Components on the diagram

                                                                                                                                                                                                                  # Power door locks circuit (2 of 6)

                                                                                                                                                                                                                  Power door locks — Power door locks circuit — Power door locks circuit (2 of 6). Audi A4 B9 (2015-2020)
                                                                                                                                                                                                                  Components on the diagram

                                                                                                                                                                                                                    # Power door locks circuit (3 of 6)

                                                                                                                                                                                                                    Power door locks — Power door locks circuit — Power door locks circuit (3 of 6). Audi A4 B9 (2015-2020)
                                                                                                                                                                                                                    Components on the diagram

                                                                                                                                                                                                                      # Power door locks circuit (4 of 6)

                                                                                                                                                                                                                      Power door locks — Power door locks circuit — Power door locks circuit (4 of 6). Audi A4 B9 (2015-2020)
                                                                                                                                                                                                                      Components on the diagram

                                                                                                                                                                                                                        # Power door locks circuit (5 of 6)

                                                                                                                                                                                                                        Power door locks — Power door locks circuit — Power door locks circuit (5 of 6). Audi A4 B9 (2015-2020)
                                                                                                                                                                                                                        Components on the diagram

                                                                                                                                                                                                                          # Power door locks circuit (6 of 6)

                                                                                                                                                                                                                          Power door locks — Power door locks circuit — Power door locks circuit (6 of 6). Audi A4 B9 (2015-2020)
                                                                                                                                                                                                                          Components on the diagram

                                                                                                                                                                                                                            Power mirrors

                                                                                                                                                                                                                            # Automatic day/night mirror circuit

                                                                                                                                                                                                                            Power mirrors — Automatic day/night mirror circuit — Automatic day/night mirror circuit. Audi A4 B9 (2015-2020)
                                                                                                                                                                                                                            Components on the diagram

                                                                                                                                                                                                                              # Power mirrors circuit

                                                                                                                                                                                                                              # Power mirrors circuit (1 of 2)

                                                                                                                                                                                                                              Power mirrors — Power mirrors circuit — Power mirrors circuit (1 of 2). Audi A4 B9 (2015-2020)
                                                                                                                                                                                                                              Components on the diagram

                                                                                                                                                                                                                                # Power mirrors circuit (2 of 2)

                                                                                                                                                                                                                                Power mirrors — Power mirrors circuit — Power mirrors circuit (2 of 2). Audi A4 B9 (2015-2020)
                                                                                                                                                                                                                                Components on the diagram

                                                                                                                                                                                                                                  Power seats

                                                                                                                                                                                                                                  # Heated seats circuit, w/ ventilation

                                                                                                                                                                                                                                  # Heated seats circuit, w/ ventilation (1 of 2)

                                                                                                                                                                                                                                  Power seats — Heated seats circuit, w/ ventilation — Heated seats circuit, w/ ventilation (1 of 2). Audi A4 B9 (2015-2020)
                                                                                                                                                                                                                                  Components on the diagram

                                                                                                                                                                                                                                    # Heated seats circuit, w/ ventilation (2 of 2)

                                                                                                                                                                                                                                    Power seats — Heated seats circuit, w/ ventilation — Heated seats circuit, w/ ventilation (2 of 2). Audi A4 B9 (2015-2020)
                                                                                                                                                                                                                                    Components on the diagram

                                                                                                                                                                                                                                      # Heated seats circuit, w/o ventilation

                                                                                                                                                                                                                                      # Heated seats circuit, w/o ventilation (1 of 2)

                                                                                                                                                                                                                                      Power seats — Heated seats circuit, w/o ventilation — Heated seats circuit, w/o ventilation (1 of 2). Audi A4 B9 (2015-2020)
                                                                                                                                                                                                                                      Components on the diagram

                                                                                                                                                                                                                                        # Heated seats circuit, w/o ventilation (2 of 2)

                                                                                                                                                                                                                                        Power seats — Heated seats circuit, w/o ventilation — Heated seats circuit, w/o ventilation (2 of 2). Audi A4 B9 (2015-2020)
                                                                                                                                                                                                                                        Components on the diagram

                                                                                                                                                                                                                                          # Heated steering wheel circuit

                                                                                                                                                                                                                                          Power seats — Heated steering wheel circuit — Heated steering wheel circuit. Audi A4 B9 (2015-2020)
                                                                                                                                                                                                                                          Components on the diagram

                                                                                                                                                                                                                                            # Lumbar circuit

                                                                                                                                                                                                                                            Power seats — Lumbar circuit — Lumbar circuit. Audi A4 B9 (2015-2020)
                                                                                                                                                                                                                                            Components on the diagram

                                                                                                                                                                                                                                              # Power seats circuit

                                                                                                                                                                                                                                              # Power seats circuit (1 of 2)

                                                                                                                                                                                                                                              Power seats — Power seats circuit — Power seats circuit (1 of 2). Audi A4 B9 (2015-2020)
                                                                                                                                                                                                                                              Components on the diagram

                                                                                                                                                                                                                                                # Power seats circuit (2 of 2)

                                                                                                                                                                                                                                                Power seats — Power seats circuit — Power seats circuit (2 of 2). Audi A4 B9 (2015-2020)
                                                                                                                                                                                                                                                Components on the diagram

                                                                                                                                                                                                                                                  Power top/sunroof

                                                                                                                                                                                                                                                  # Power top/sunroof circuit

                                                                                                                                                                                                                                                  Power top/sunroof — Power top/sunroof circuit — Power top/sunroof circuit. Audi A4 B9 (2015-2020)
                                                                                                                                                                                                                                                  Components on the diagram

                                                                                                                                                                                                                                                    Power windows

                                                                                                                                                                                                                                                    # Power windows circuit

                                                                                                                                                                                                                                                    # Power windows circuit (1 of 2)

                                                                                                                                                                                                                                                    Power windows — Power windows circuit — Power windows circuit (1 of 2). Audi A4 B9 (2015-2020)
                                                                                                                                                                                                                                                    Components on the diagram

                                                                                                                                                                                                                                                      # Power windows circuit (2 of 2)

                                                                                                                                                                                                                                                      Power windows — Power windows circuit — Power windows circuit (2 of 2). Audi A4 B9 (2015-2020)
                                                                                                                                                                                                                                                      Components on the diagram

                                                                                                                                                                                                                                                        Radio

                                                                                                                                                                                                                                                        # Most data bus circuit

                                                                                                                                                                                                                                                        Radio — Most data bus circuit — Most data bus circuit. Audi A4 B9 (2015-2020)
                                                                                                                                                                                                                                                        Components on the diagram

                                                                                                                                                                                                                                                          # Radio circuit, w/ bang & olufson sound

                                                                                                                                                                                                                                                          # Radio circuit, w/ bang & olufson sound (1 of 5)

                                                                                                                                                                                                                                                          Radio — Radio circuit, w/ bang & olufson sound — Radio circuit, w/ bang & olufson sound (1 of 5). Audi A4 B9 (2015-2020)
                                                                                                                                                                                                                                                          Components on the diagram

                                                                                                                                                                                                                                                            # Radio circuit, w/ bang & olufson sound (2 of 5)

                                                                                                                                                                                                                                                            Radio — Radio circuit, w/ bang & olufson sound — Radio circuit, w/ bang & olufson sound (2 of 5). Audi A4 B9 (2015-2020)
                                                                                                                                                                                                                                                            Components on the diagram

                                                                                                                                                                                                                                                              # Radio circuit, w/ bang & olufson sound (3 of 5)

                                                                                                                                                                                                                                                              Radio — Radio circuit, w/ bang & olufson sound — Radio circuit, w/ bang & olufson sound (3 of 5). Audi A4 B9 (2015-2020)
                                                                                                                                                                                                                                                              Components on the diagram

                                                                                                                                                                                                                                                                # Radio circuit, w/ bang & olufson sound (4 of 5)

                                                                                                                                                                                                                                                                Radio — Radio circuit, w/ bang & olufson sound — Radio circuit, w/ bang & olufson sound (4 of 5). Audi A4 B9 (2015-2020)
                                                                                                                                                                                                                                                                Components on the diagram

                                                                                                                                                                                                                                                                  # Radio circuit, w/ bang & olufson sound (5 of 5)

                                                                                                                                                                                                                                                                  Radio — Radio circuit, w/ bang & olufson sound — Radio circuit, w/ bang & olufson sound (5 of 5). Audi A4 B9 (2015-2020)
                                                                                                                                                                                                                                                                  Components on the diagram

                                                                                                                                                                                                                                                                    # Radio circuit, w/ navigation

                                                                                                                                                                                                                                                                    # Radio circuit, w/ navigation (1 of 4)

                                                                                                                                                                                                                                                                    Radio — Radio circuit, w/ navigation — Radio circuit, w/ navigation (1 of 4). Audi A4 B9 (2015-2020)
                                                                                                                                                                                                                                                                    Components on the diagram

                                                                                                                                                                                                                                                                      # Radio circuit, w/ navigation (2 of 4)

                                                                                                                                                                                                                                                                      Radio — Radio circuit, w/ navigation — Radio circuit, w/ navigation (2 of 4). Audi A4 B9 (2015-2020)
                                                                                                                                                                                                                                                                      Components on the diagram

                                                                                                                                                                                                                                                                        # Radio circuit, w/ navigation (3 of 4)

                                                                                                                                                                                                                                                                        Radio — Radio circuit, w/ navigation — Radio circuit, w/ navigation (3 of 4). Audi A4 B9 (2015-2020)
                                                                                                                                                                                                                                                                        Components on the diagram

                                                                                                                                                                                                                                                                          # Radio circuit, w/ navigation (4 of 4)

                                                                                                                                                                                                                                                                          Radio — Radio circuit, w/ navigation — Radio circuit, w/ navigation (4 of 4). Audi A4 B9 (2015-2020)
                                                                                                                                                                                                                                                                          Components on the diagram

                                                                                                                                                                                                                                                                            # Radio circuit, w/o navigation

                                                                                                                                                                                                                                                                            # Radio circuit, w/o navigation (1 of 3)

                                                                                                                                                                                                                                                                            Radio — Radio circuit, w/o navigation — Radio circuit, w/o navigation (1 of 3). Audi A4 B9 (2015-2020)
                                                                                                                                                                                                                                                                            Components on the diagram

                                                                                                                                                                                                                                                                              # Radio circuit, w/o navigation (2 of 3)

                                                                                                                                                                                                                                                                              Radio — Radio circuit, w/o navigation — Radio circuit, w/o navigation (2 of 3). Audi A4 B9 (2015-2020)
                                                                                                                                                                                                                                                                              Components on the diagram

                                                                                                                                                                                                                                                                                # Radio circuit, w/o navigation (3 of 3)

                                                                                                                                                                                                                                                                                Radio — Radio circuit, w/o navigation — Radio circuit, w/o navigation (3 of 3). Audi A4 B9 (2015-2020)
                                                                                                                                                                                                                                                                                Components on the diagram

                                                                                                                                                                                                                                                                                  # Rear seat entertainment circuit

                                                                                                                                                                                                                                                                                  Radio — Rear seat entertainment circuit — Rear seat entertainment circuit. Audi A4 B9 (2015-2020)
                                                                                                                                                                                                                                                                                  Components on the diagram

                                                                                                                                                                                                                                                                                    # Tv tuner circuit

                                                                                                                                                                                                                                                                                    Radio — Tv tuner circuit — Tv tuner circuit. Audi A4 B9 (2015-2020)
                                                                                                                                                                                                                                                                                    Components on the diagram

                                                                                                                                                                                                                                                                                      Shift interlock

                                                                                                                                                                                                                                                                                      # Shift interlock circuit

                                                                                                                                                                                                                                                                                      Shift interlock — Shift interlock circuit — Shift interlock circuit. Audi A4 B9 (2015-2020)
                                                                                                                                                                                                                                                                                      Components on the diagram

                                                                                                                                                                                                                                                                                        # Steering column circuit

                                                                                                                                                                                                                                                                                        Shift interlock — Steering column circuit — Steering column circuit. Audi A4 B9 (2015-2020)
                                                                                                                                                                                                                                                                                        Components on the diagram

                                                                                                                                                                                                                                                                                          Starting/charging

                                                                                                                                                                                                                                                                                          # Charging circuit

                                                                                                                                                                                                                                                                                          Starting/charging — Charging circuit — Charging circuit. Audi A4 B9 (2015-2020)
                                                                                                                                                                                                                                                                                          Components on the diagram

                                                                                                                                                                                                                                                                                            # Starting circuit

                                                                                                                                                                                                                                                                                            # Starting circuit (1 of 2)

                                                                                                                                                                                                                                                                                            Starting/charging — Starting circuit — Starting circuit (1 of 2). Audi A4 B9 (2015-2020)
                                                                                                                                                                                                                                                                                            Components on the diagram

                                                                                                                                                                                                                                                                                              # Starting circuit (2 of 2)

                                                                                                                                                                                                                                                                                              Starting/charging — Starting circuit — Starting circuit (2 of 2). Audi A4 B9 (2015-2020)
                                                                                                                                                                                                                                                                                              Components on the diagram

                                                                                                                                                                                                                                                                                                Supplemental restraints

                                                                                                                                                                                                                                                                                                # Supplemental restraints circuit

                                                                                                                                                                                                                                                                                                # Supplemental restraints circuit (1 of 5)

                                                                                                                                                                                                                                                                                                Supplemental restraints — Supplemental restraints circuit — Supplemental restraints circuit (1 of 5). Audi A4 B9 (2015-2020)
                                                                                                                                                                                                                                                                                                Components on the diagram

                                                                                                                                                                                                                                                                                                  # Supplemental restraints circuit (2 of 5)

                                                                                                                                                                                                                                                                                                  Supplemental restraints — Supplemental restraints circuit — Supplemental restraints circuit (2 of 5). Audi A4 B9 (2015-2020)
                                                                                                                                                                                                                                                                                                  Components on the diagram

                                                                                                                                                                                                                                                                                                    # Supplemental restraints circuit (3 of 5)

                                                                                                                                                                                                                                                                                                    Supplemental restraints — Supplemental restraints circuit — Supplemental restraints circuit (3 of 5). Audi A4 B9 (2015-2020)
                                                                                                                                                                                                                                                                                                    Components on the diagram

                                                                                                                                                                                                                                                                                                      # Supplemental restraints circuit (4 of 5)

                                                                                                                                                                                                                                                                                                      Supplemental restraints — Supplemental restraints circuit — Supplemental restraints circuit (4 of 5). Audi A4 B9 (2015-2020)
                                                                                                                                                                                                                                                                                                      Components on the diagram

                                                                                                                                                                                                                                                                                                        # Supplemental restraints circuit (5 of 5)

                                                                                                                                                                                                                                                                                                        Supplemental restraints — Supplemental restraints circuit — Supplemental restraints circuit (5 of 5). Audi A4 B9 (2015-2020)
                                                                                                                                                                                                                                                                                                        Components on the diagram

                                                                                                                                                                                                                                                                                                          Transmission

                                                                                                                                                                                                                                                                                                          # A/t circuit

                                                                                                                                                                                                                                                                                                          # A/t circuit (1 of 2)

                                                                                                                                                                                                                                                                                                          Transmission — A/t circuit — A/t circuit (1 of 2). Audi A4 B9 (2015-2020)
                                                                                                                                                                                                                                                                                                          Components on the diagram

                                                                                                                                                                                                                                                                                                            # A/t circuit (2 of 2)

                                                                                                                                                                                                                                                                                                            Transmission — A/t circuit — A/t circuit (2 of 2). Audi A4 B9 (2015-2020)
                                                                                                                                                                                                                                                                                                            Components on the diagram

                                                                                                                                                                                                                                                                                                              # Awd circuit, w/ torque vectoring

                                                                                                                                                                                                                                                                                                              Transmission — Awd circuit, w/ torque vectoring — Awd circuit, w/ torque vectoring. Audi A4 B9 (2015-2020)
                                                                                                                                                                                                                                                                                                              Components on the diagram

                                                                                                                                                                                                                                                                                                                # Awd circuit, w/o torque vectoring

                                                                                                                                                                                                                                                                                                                Transmission — Awd circuit, w/o torque vectoring — Awd circuit, w/o torque vectoring. Audi A4 B9 (2015-2020)
                                                                                                                                                                                                                                                                                                                Components on the diagram

                                                                                                                                                                                                                                                                                                                  Trunk, tailgate, fuel door

                                                                                                                                                                                                                                                                                                                  # Trunk & fuel door release circuit

                                                                                                                                                                                                                                                                                                                  # Trunk & fuel door release circuit (1 of 2)

                                                                                                                                                                                                                                                                                                                  Trunk, tailgate, fuel door — Trunk & fuel door release circuit — Trunk & fuel door release circuit (1 of 2). Audi A4 B9 (2015-2020)
                                                                                                                                                                                                                                                                                                                  Components on the diagram

                                                                                                                                                                                                                                                                                                                    # Trunk & fuel door release circuit (2 of 2)

                                                                                                                                                                                                                                                                                                                    Trunk, tailgate, fuel door — Trunk & fuel door release circuit — Trunk & fuel door release circuit (2 of 2). Audi A4 B9 (2015-2020)
                                                                                                                                                                                                                                                                                                                    Components on the diagram

                                                                                                                                                                                                                                                                                                                      Warning systems

                                                                                                                                                                                                                                                                                                                      # Brake wear sensor circuit

                                                                                                                                                                                                                                                                                                                      Warning systems — Brake wear sensor circuit — Brake wear sensor circuit. Audi A4 B9 (2015-2020)
                                                                                                                                                                                                                                                                                                                      Components on the diagram

                                                                                                                                                                                                                                                                                                                        # Tire pressure monitoring circuit

                                                                                                                                                                                                                                                                                                                        Warning systems — Tire pressure monitoring circuit — Tire pressure monitoring circuit. Audi A4 B9 (2015-2020)
                                                                                                                                                                                                                                                                                                                        Components on the diagram

                                                                                                                                                                                                                                                                                                                          Wiper/washer

                                                                                                                                                                                                                                                                                                                          # Jet heater circuit

                                                                                                                                                                                                                                                                                                                          Wiper/washer — Jet heater circuit — Jet heater circuit. Audi A4 B9 (2015-2020)
                                                                                                                                                                                                                                                                                                                          Components on the diagram

                                                                                                                                                                                                                                                                                                                            # Wiper/washer circuit

                                                                                                                                                                                                                                                                                                                            Wiper/washer — Wiper/washer circuit — Wiper/washer circuit. Audi A4 B9 (2015-2020)
                                                                                                                                                                                                                                                                                                                            Components on the diagram