Download Audi TT Quattro 45 Roadster (FVR) 2021 Electrical Diagram Manual L4-2.0L Turbo (DHHA) PDF

Comprehensive electrical diagram manual for the 2021 Audi TT Quattro 45 Roadster (FVR) with L4-2.0L Turbo engine (DHHA). This detailed technical reference covers complete wiring schematics, electrical system layouts, component locations, and circuit diagrams essential for diagnostics, repairs, and modifications. Ideal for technicians, mechanics, and automotive enthusiasts requiring accurate electrical system documentation. Includes detailed illustrations and specifications for proper understanding of all electrical circuits and connections in your vehicle.

MODEL COVERED: 
TT Quattro 45 Roadster (FVR) 2021
Engine: L4-2.0L Turbo (DHHA)

MANUAL CONTENTS:
1. Active Body Work
2. Air Conditioning – Automatic A_C Circuit
3. Anti-Lock Brakes
4. Anti-Theft – Access_Start Circuit
5. Anti-Theft – Forced Entry Circuit
6. Computer Data Lines
7. Cooling Fans
8. Cruise Control
9. Defogger
10. Door Locks
11. Electronic Power Steering
12. Electronic Suspension
13. Engine Controls – DHHA
14. Engine Controls – DLRA
15. Exterior Lights – Backup Lamps Circuit
16. Exterior Lights – Exterior Lamps Circuit
17. Ground Distribution
18. Headlights – W_ HID
19. Headlights – W_O HID amp Matrix Beam
20. Headlights – W_O HID W_ Matrix Beam
21. Instrument Cluster
22. Interior Lights – Courtesy Lamps Circuit
23. Interior Lights – Instrument Illumination Circuit
24. Mirrors – Automatic Day_Night Mirror Circuit
25. Mirrors – Power Mirrors Circuit
26. Navigation – Lane Change Assistance Circuit
27. Navigation – Lane Departure Warning Circuit
28. Navigation – Navigation Circuit
29. Navigation – Parking Assistant Circuit (W_ Parallel Parking)
30. Navigation – Parking Assistant Circuit (W_O Parallel Parking)
31. Navigation – Rear Camera Circuit
32. Navigation – Vehicle Positioning Interface Control Module Circuit
33. Power Distribution
34. Power Tops
35. Power Windows
36. Seats – Heated Seats Circuit
37. Seats – Lumbar Circuit
38. Seats – Multi Contour Seat Circuit
39. Seats – Neck Warmer Circuit
40. Seats – Power Seats Circuit
41. Shift Interlock – Shift Interlock Circuit
42. Sound Systems – MOST Data Bus Circuit
43. Sound Systems – Radio Circuit (W_ Bang amp Olufsen Sound)
44. Sound Systems – Radio Circuit (W_ Navigation)
45. Sound Systems – Radio Circuit (W_O Navigation)
46. Sound Systems – TV Tuner Circuit
47. Starting_Charging – Charging Circuit
48. Starting_Charging – Starting Circuit
49. Steering Column Circuit
50. Steering Column Electronic Systems Control Module Circuit
51. Supplemental Restraints
52. Transmissions – A_T Circuit
53. Transmissions – AWD Circuit
54. Trunk, Tailgate, Fuel Doors – Trunk amp Fuel Door Release Circuit
55. Vehicle Electrical System Control Module Circuit
56. Warning Systems – Brake Wear Sensor Circuit
57. Warning Systems – Buzzer Circuit
58. Warning Systems – Tire Pressure Monitoring Circuit
59. Wiper_Washer – Jet Heater Circuit
60. Wiper_Washer – Wiper_Washer Circuit
61. Sockets, Cigarette Lighter, from November 2014_001
62. Sockets, Cigarette Lighter, from November 2014_002
63. Gasoline Engine, DHHA, from June 2018
64. A_C System w_ Automatic Control, (9AK), from November 2014
65. A_C System w_ Manual Control, (9AC),(KH6), from November 2014
66. Access and Start Authorization, (4F2),(4I3), from November 2014_001
67. Access and Start Authorization, (4F2),(4I3), from November 2014_002
68. Airbag Systems (USA), (4UB), from November 2014
69. All-Wheel Drive, (1X1), from November 2014
70. Anti-Lock Brake System (ABS), from November 2014
71. Automatic Convertible Top, Power Wind Deflector, Rear Window Defogger, from November 2014
72. Automatic Dimming Interior Rearview Mirror, from November 2014
73. Automatic Transmission – DSG 0D9, (0ES), from November 2014
74. Cell Phone System, (9ZE),(9ZV),(9ZX), from November 2014
75. Convenience System, from November 2014_001
76. Convenience System, from November 2014_002
77. Convenience System, from November 2014_003
78. Convenience System, from November 2014_004
79. Convenience System, from November 2014_005
80. Convenience System, from November 2014_006
81. Convenience System, from November 2014_007
82. Convenience System, from November 2014_008
83. Convenience System, from November 2014_009
84. Convenience System, from November 2014_010
85. Data Bus on Board Diagnostic Interface and Diagnostic Link Connector (DLC), from November 2014
86. Driver Assistance Systems Front Camera, (QK1), from November 2014
87. Fuse Positions, from June 2018
88. Garage Door Opener, (VC1),(VC2), from November 2014
89. Headlamps HID w_ Range Control, (8IH), from November 2014
90. Headlamps LED w_ Matrix Beam, (8G4), from November 2014
91. Headlamps LED, (8IT), from November 2014
92. Infotainment MOST BUS, from November 2014
93. Lane Change Assistance, (7Y1), from November 2014
94. Level Control System w_ Dampening Adjustment, (1BL),(1BQ),(2MV), from November 2014
95. MMI High w_ Navigation System, (I8H), from November 2014
96. MMI w_ Radio, (I8E), from November 2014
97. Multifunction Steering Wheel, (2PU),(2PF), from November 2014
98. Multifunction Steering Wheel, (2ZC), from June 2016
99. Neck Heating, (9K1), from November 2014
100. Parking Distance Control, (7X1),(7X2), from November 2014
101. Parking Distance Control, (7X5), from November 2014
102. Power Steering, Electromechanical, from November 2014
103. Radio, from November 2014
104. Rearview Camera (Rear Assist), (KA2), from November 2014
105. Seat Heating, (4A3), from November 2014
106. Seat Lumbar Adjustment w_ Manual Seats, (7P1),(3L3), from November 2014
107. Seat Lumbar Adjustment w_ Power Seats, (3PK), from November 2014
108. Seats Adjustment, Front only, (3L5), from November 2014
109. Sound System, Bang amp Olufsen, (9VS), from November 2014
110. Standard Equipment, from November 2014_001
111. Standard Equipment, from November 2014_002
112. Standard Equipment, from November 2014_003
113. Standard Equipment, from November 2014_004
114. Standard Equipment, from November 2014_005
115. Standard Equipment, from November 2014_006
116. Standard Equipment, from November 2014_007
117. Standard Equipment, from November 2014_008
118. Standard Equipment, from November 2014_009
119. Standard Equipment, from November 2014_010
120. Standard Equipment, from November 2014_011
121. Standard Equipment, from November 2014_012
122. Standard Equipment, from November 2014_013
123. Standard Equipment, from November 2014_014
124. Tail Lamps w_ LED, only for US Equipment, (8SP), (8SC), from November 2014
125. Tire Pressure Monitoring, (7K1),(7K6),(7K9), from June 2015
126. TV Tuner, (QU1),(QV1), from November 2014