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Digital Sound System Control Module Connector End View (J525, T38, T18i, T2ca)

Fig 1: Digital Sound System Control Module Connector End View (J525, T38, T18i, T2ca)
G10360121Courtesy of AUDI OF AMERICA, LLC
1 Digital Sound System Control Module -J525-
A 38-Pin Connector -T38-, black
B 18-Pin Connector -T18i-, black
C Double Connector -T2ca-, MOST-Bus, black
-T18i- (B) Designation -T38- (A) Designation -T38- (A) Designation
1   1 Terminal 30, from (B607)
Connection 3 (in interior wiring harness)
Fuse Panel F -SF-
20 Right Rear Bass Speaker -R17-
Right Rear Treble Speaker -R16-
2   2 Terminal 31, to (50) Ground
Connection (in left luggage compartment)
21  
3   3   22  
4   4 Subwoofer -R211- 23  
5   5   24  
6 Noise reduction microphone 3 -R287- 6   25 Ringbreak Diagnosis Wire (B444) OBD connection 1 (in main wiring harness)
7 Noise reduction microphone 3 -R287- 7 Left Rear Bass Speaker -R15-
Left Rear Treble Speaker -R14-
26 Right Front Midrange Speaker -R104-
8 Noise reduction microphone 1 -R285- 8 Right Rear Bass Speaker -R17-
Right Rear Treble Speaker -R16-
27 Right Front Midrange Speaker -R104-
9 Noise reduction microphone 1 -R285- 9   28  
10 Engine Control Module (ECM) -J623-
Subframe Mount Control Module -J931-
10   29  
11 Terminal 31, to (397) Ground Connection 32 (in main wiring harness) Exhaust Flap Control Module -J883- 11 Left Front Bass Speaker -R21- 30  
12   12 Left Front Bass Speaker -R21- 31 Center speaker -R208-
13 Noise reduction microphone 4 -R288- 13 Right Front Bass Speaker -R23- 32 Center speaker -R208-
14 Noise reduction microphone 4 -R288- 14 Right Front Bass Speaker -R23- 33 Right Front Speaker -R3-
15   15   34 Right Front Speaker -R3-
16 Noise reduction microphone 2 -R286- 16 Subwoofer -R211- 35 Left Front Speaker -R2-
17 Noise reduction microphone 2 -R286- 17   36 Left Front Speaker -R2-
18   18   37 Left Front Midrange Speaker -R103-
    19 Left Rear Bass Speaker -R15-
Left Rear Treble Speaker -R14-
38 Left Front Midrange Speaker -R103-


Fig 1: Digital Sound System Control Module Connector End View (J525, T38, T18i, T2ca)
G10360122Courtesy of AUDI OF AMERICA, LLC
1 Digital Sound System Control Module -J525-
A 38-Pin Connector -T38-, black
B 18-Pin Connector -T18i-, black
C Double Connector -T2ca-, MOST-Bus, black
-T18i-(B) Designation -T38- (A) Designation -T38- (A) Designation
1   1 Terminal 30, from (B607) Connection 3 (in interior wiring harness)
Fuse Panel F -SF-
20 Right Rear Bass Speaker -R17-
Right Rear Treble Speaker -R16-
2   2 Terminal 31, to (50) Ground Connection (in left luggage compartment) 21 Left effects speaker -R209-
3   3   22 Right effects speaker -R210-
4   4 Subwoofer -R211- 23  
5   5   24  
6 Noise reduction microphone 3 -R287- 6   25 Ringbreak Diagnosis Wire (B444) OBD connection 1 (in main wiring harness)
7 Noise reduction microphone 3 -R287- 7 Left Rear Bass Speaker -R15-
Left Rear Treble Speaker -R14-
26 Right Front Midrange Speaker -R104-
8 Noise reduction microphone 1 -R285- 8 Right Rear Bass Speaker -R17-Right Rear Treble Speaker -R16- 27 Right Front Midrange Speaker -R104-
9 Noise reduction microphone 1 -R285- 9 Left effects speaker -R209- 28 Ground-shielding
Microphone Unit (in front roof module) -R164-
10 Engine Control Module (ECM) -J623-
Subframe Mount Control Module -J931-
10 Right effects speaker -R210- 29 Inside Microphone -R74-
Microphone Unit (in front roof module) -R164-
11 Terminal 31, to (397) Ground Connection 32 (in main wiring harness) Exhaust Flap Control Module -J883- 11 Left Front Bass Speaker -R21- 30 Inside Microphone -R74-
Microphone Unit (in front roof module) -R164-
12   12 Left Front Bass Speaker -R21- 31 Center speaker -R208-
13 Noise reduction microphone 4 -R288- 13 Right Front Bass Speaker -R23- 32 Center speaker -R208-
14 Noise reduction microphone 4 -R288- 14 Right Front Bass Speaker -R23- 33 Right Front Speaker -R3-
15   15   34 Right Front Speaker -R3-
16 Noise reduction microphone 2 -R286- 16 Subwoofer -R211- 35 Left Front Speaker -R2-
17 Noise reduction microphone 2 -R286- 17   36 Left Front Speaker -R2-
18   18   37 Left Front Midrange Speaker -R103-
    19 Left Rear Bass Speaker -R15-
Left Rear Treble Speaker -R14-
38 Left Front Midrange Speaker -R103-