Audi Q4 E-Tron (2021+) - Wiring Diagrams & Electrical Components Locator

AUDI Q4 E-TRON (2021+) - WIRING DIAGRAMS - ELECTRICAL COMPONENTS LOCATOR

- English Wiring Diagrams and Electrical Components Locator for cars Audi Q4 E-Tron from year 2021.


CONTENTS:

ELECTRICAL WIRING DIAGRAMS

- Current flow diagram - General information
- Wire colour
- Electric drive system for front axle , EBRA
- Electric drive system for rear axle , EBJA,EBRA
- Electric drive system, motor control unit
- Engine sound generator
- Radiator fan
- High-voltage system
- High-voltage battery system , (J9B)
- High-voltage battery system , (J9D)
- High-voltage battery charging , (ES7)
- Pilot line for high-voltage system
- Thermal management , (9M0)
- Thermal management , (9M3)
- Airbag systems for RHD vehicles , (L0R)
- Airbag systems for LHD vehicles , (4UE),(4UF)
- Adaptive chassis control DCC , (2I0)
- Trailer coupling , (1M6)
- Trailer coupling , (1D7)
- Automatic anti-dazzle interior mirror , (4L6),(4L7)
- Assist systems
- Brake system
- Heated rear window
- Heated windscreen , (4GW)
- Electromechanical steering
- Centre console switches
- Steering column electronics , (AI8)
- Steering column electronics , (AI9)
- Horn
- 12 V sockets
- USB charging sockets , (7B9)
- Window wash/wipe system
- Multifunction steering wheel
- Rear lid remote release
- Door control units, driver side , (L0L)
- Door control units, passenger side , (L0L)
- Door control units, driver side , (L0R)
- Door control units, passenger side , (L0R)
- Electrically operated rear lid , (4E6),(4E7)
- Light switch
- Headlights , (8IT)
- Headlights , (8IY)
- Tail light clusters , (AV0),(AV1),(8VP)
- Tail light clusters , (8VG)
- Interior lights , (QQ0)
- Interior lights , (QQ8)
- Interior lights , (QQ9)
- Fuses in engine compartment
- Fuses in interior
- Diagnostic connector
- Data bus network for powertrain CAN bus
- Data bus network for running gear CAN bus
- Data bus network for convenience CAN bus
- Data bus network for infotainment CAN bus
- Data bus network for ethernet
- Data bus network for electric vehicle CAN bus
- Data bus network for driver assist systems CAN bus
- Data bus network for connectivity CAN bus
- Data bus network for driver information system CAN bus
- Dash panel insert
- Head-up display , (KS3)
- Lane change assist , (79H),(7Y1)
- Front camera for driver assist systems
- Reversing camera (Rear Assist) , (KA2)
- Overhead view camera , (KA6)
- Parking aid (PDC) , (7X1),(7X2),(8A2)
- Air conditioning system
- Front seat heating , (4A3)
- Driver seat , (AI1)
- Driver seat , (AI0)
- Front passenger seat , (3L5)
- Adjustable lumbar support , (7P1),(7P9)
- Garage door opener , (VC2)
- Sliding sunroof , (3FU)
- Entry and start authorisation , (4I6),(4I7),(4I8)
- Entry and start authorisation , (4K5),(4K6),(@4K7)
- Anti-theft alarm system , (7AL)
- MMI (information electronics 1)
- Sound system , (8RE),(9VD)
- Sound system , (9VS)
- Mobile telephone systems , (9ZE),(9ZV)
- Communication
- Bonnet contact switch
- High-voltage battery charging , (ES6)
- Airbag systems for LHD vehicles , (4UM)
- Tail light clusters , (AV2),(8VM),(8VP)
- Trailer coupling , (1D6),(1D8)
- High-voltage battery charging , (ES5)
- Communication, Japan , (ER5)
- Driving school , (F5F)
- Preparation for driving aids for disabled persons , (F6M)
- Civilian response vehicles (emergency medical service) , (F4T)
- TV tuner , (ER5),(QV1)


ELECTRICAL COMPONENTS LOCATOR

- 1- Fitting locations: Earth points
- 1.2.2Front right of interior
- 1.3.1Left luggage compartment
- 1.3.2On right in luggage compartment, rear lid, Kurzheck
- 1.3.3On right in luggage compartment, rear lid, Sportback
- 1.4Earth points on vehicle underbody
- 1.4.1Rear underbody
- 1-Fitting locations: Fuses
- 1.1.2Fuse assignment of fuse holder A -SA-, from January 2021
- 1.3Fuse holder C -SC-, from January 2021
- 1.4.2Fitting location of individual fuses, right-hand drive models, from January 2021
- 1.4.3Fuse assignment, individual fuses, left-hand drive models, from January 2021
- 1- Fitting locations: Relays
- 1.2.1Relays on fuse holder C -SC-, left-hand drive models, from January 2021
- 1.2.2Relays on fuse holder C -SC-, right-hand drive models, from January 2021
- 1Fitting location: front part of vehicle
- 1.2.1Front, view from left, part 1
- 1.2.2Front, view from left, part 2, for models with no heat pump
- 1.2.3Front, view from left, part 2, for models with heat pump
- 1.3Front, view from right
- 1.4Connector assignments
- 1Fitting locations: middle part of vehicle
- 1.1.1Front left of interior, LHD models
- 1.1.2Front left of interior, RHD models, part 1
- 1.1.3Front left of interior, RHD models, part 2
- 1.1.4Left footwell, LHD models
- 1.1.5Right footwell, RHD models
- 1.1.6Front right of interior, LHD models, part 1
- 1.1.7Front right of interior, LHD models, part 2
- 1.1.8Front right of interior, RHD models
- 1.1.9Dash panel, LHD models
- 1.1.10 Dash panel, RHD models
- 1.1.11 Steering wheel
- 1.1.13 Centre console
- 1.1.14 Driver seat, left-hand drive models
- 1.1.15 Driver seat, RHD models
- 1.1.16 Front passenger seat, left-hand drive models
- 1.1.17 Front passenger seat, right-hand drive models
- 1.1.18 Front seat heater, left seat
- 1.2.1Rear interior, view from left, LHD models
- 1.2.2Rear interior, view from left, RHD models
- 1.2.3Rear interior, view from right
- 1.3.1Roof, part 1
- 1.3.2Roof, part 2, for models with no glass roof
- 1.4.2Driver door, right-hand drive models
- 1.4.3Front passenger door, left-hand drive models
- 1.4.4Front passenger door, right-hand drive models
- 1.4.5Rear left door, LHD models
- 1.4.6Rear left door, RHD models
- 1.4.7Rear right door, LHD models
- 1.4.8Rear right door, RHD models
- 1.5Heater and air conditioning unit
- 1.5.2Air conditioning system, part 2
- 1.6Connector assignments
- 1Fitting locations: rear part of vehicle
- 1.1.2Rear lid, Sportback
- 1.2Rear bumper
- 1-Fitting locations: Vehicle underbody
- 1.2Underbody, front part, all-wheel drive
- 1.3Underbody, rear part, rear-wheel drive
- 1.4Underbody, rear part, all-wheel drive
- 1.5High-voltage battery system
- 1.5.2High-voltage battery system, 82 kWh
- 1-Connector views: parts with prefix A to D
- 1.1.28-pin connector -T8c-
- 1.5.12-pin connector -T2gz-
- 1-Connector views: parts with prefix E
- 1.2Front passenger side belt switch -E25- 1.2.12-pin connector -T2ix-
- 5-pin connector -T5h-
- 1.16.1 6-pin connector -T6az-
- 6-pin connector -T6ba-
- 4-pin connector -T4ck-
- 1-Connector views: parts with prefix F
- 1-Connector views: parts with prefix G
- 2-pin connector -T2ct-
- 3-pin connector -T3o-
- 3-pin connector -T3s-
- 3-pin connector -T3y-
- 3-pin connector -T3ac-
- 3-pin connector -T3ae-
- 1-Connector views: parts with prefix H to I
- 3-pin connector -T3at-
- 1-Connector views: parts with prefix J
- 1.2Fresh air blower control unit -J126- 1.2.14-pin connector -T4ae-
- 3-pin connector -T3br-
- 1.22.2 32-pin connector -T32g-
- 10-pin connector -T10aj-
- 1.28.1 3-pin connector -T3bz-
- 1.29.2 32-pin connector -T32d-
- 1.31.2 16-pin connector -T16l-
- 1.32.2 16-pin connector -T16m-
- 1.33.2 2-pin connector -T2gn-
- 22-pin connector -T22u-
- 22-pin connector -T22aa-
- 22-pin connector -T22ae-
- 22-pin connector -T22ab-
- 6-pin connector -T6j-
- 1.55.2 22-pin connector -T22q-
- 1.56.1 12-pin connector -T12g-
- 1.58.2 2-pin connector -T2hb-
- 1-Connector views: parts with prefix K to M
- 4-pin connector -T4am-
- 4-pin connector -T4ar-
- 1.20.1 6-pin connector -T6z-
- 6-pin connector -T6r-
- 1-Connector views: parts with prefix N
- 1.2.12-pin connector -T2gp-
- 2-pin connector -T2dy-
- 2-pin connector -T2ec-
- 2-pin connector -T2ef-
- 1.28.2 2-pin connector -T2hk-
- 1.29.2 2-pin connector -T2dw-
- 1-Connector views: parts with prefix R
- 1.2Rear left bass loudspeaker -R15- 1.2.14-pin connector -T4bo-
- 4-pin connector -T4bg-
- 4-pin connector -T4bj-
- 2-pin connector -T2hr-
- 1.13.2 4-pin connector -T4be-
- 5-pin connector -T5ab-
- 2-pin connector -T2ff-
- 1-Connector views: parts with prefix S to U
- 1.1Fuse holder C -SC-
- 6-pin connector -T6ab-
- 1.7.24-pin connector -T4i-
- 1.9.22-pin connector -T2iq-
- 4-pin connector -T4h-
- 1.13.2 10-pin connector -T10g-
- 10-pin connector -T10l-
- 2-pin connector -T2gx-
- 1.21.2 3-pin connector -T3cp-
- 1.22.2 3-pin connector -T3cr-
- 1.24.1 17-pin connector -T17v-
- 4-pin connector -T4k-
- 1.27.2 14-pin connector -T14d-
- 1.28.2 17-pin connector -T17e-
- 5-pin connector -T5b-
- 12-pin connector -T12b-
- 2-pin connector -T2al-
- 5-pin connector -T5q-
- 27-pin connector -T27b-
- 2-pin connector -T2an-
- 1.42.2 2-pin connector -T2aq-
- 1.43.2 2-pin connector -T2as-
- 1.44.2 2-pin connector -T2ai-
- 1.45.2 2-pin connector -T2aj-
- 3-pin connector -T3bh-
- 3-pin connector -T3bg-
- 1-Connector views: parts with prefix V
- 3-pin connector -T3bp-
- 4-pin connector -T4cz-
- 8-pin connector -T8v-
- 1-Connector views: parts with prefix W to Z
- 1-pin connector -T1aam-
- 1.27.2 1-pin connector -T1aal-