BOSE Sound System, Digital Sound System Control Module (J525) Connectors

BOSE Sound System, Digital Sound System Control Module (J525) Connectors

Digital Sound System Control Module (J525)





1. MOST Bus (T2ca)

2. 18-pin connector (T18)

3. 38-pin connector (T38)


• Unlisted connector terminals are not used.

1 - MOST bus (T2ca)





1. Output

2. Input


2 - 18-pin Connector (T18)





6 Left Rear Microphone (R144) (+)
7 Left Rear Microphone (R144) (-)
8 Right rear microphone (R145) (+)
9 Right rear microphone (R145) (-)
10 Engine Control Module (J623) (+) RPM Signal
11 Engine Control Module (J623) (-) RPM Signal
13 Right Center Microphone (R143) (+)
14 Right Center Microphone (R143) (-)
16 Left Center Microphone (R142) (+)
17 Left Center Microphone (R142) (-)

3- 38-pin Connector (T38)





1 Terminal 30
2 Terminal 31
3 Right rear speaker (+)
4 Left Front Bass speaker (R21) (+)
5 Subwoofer (R211) (-)
7 Left Front Midrange speaker (R103) (-)
8 Right Front Midrange speaker (R104) (+)
9 Right Front Treble speaker (R22) (-)
10 Left Front Treble speaker (R20) (+)
11 Right Front Bass speaker (R23) (-)
12 Right Front Bass speaker (R23) (+)
13 Left rear speaker (+)
14 Left rear speaker (-)
15 Right rear speaker (-)
16 Left Front Bass speaker (R21) (-)
17 Subwoofer (R211) (+)
19 Left Front Midrange speaker (R103) (+)
20 Right Front Midrange speaker (R104) (-)
21 Right Front Treble speaker (R22) (+)
22 Left Front Treble speaker (R20) (-)
25 Ring-break diagnostic cable
28 Microphone unit in front roof module (R164) ( interior microphone (R74) ) ground shielding
29 Microphone unit in front roof module (R164) ( interior microphone (R74) ) (-)
30 Microphone unit in front roof module (R164) ( interior microphone (R74) ) (+)
31 Center speaker (R208) (+)
32 Center speaker (R208) (-)
33 Left Effects speaker (R209) (-)
34 Left Effects speaker (R209) (+)
37 Right Effects speaker (R210) (+)
38 Right Effects speaker (R210) (-)