3. Check Voice Signal

WARNING: This page is about a different car, the 2004 Infiniti Q45. However, it is still accessible from the selected car via links, so may be relevant.

Connect voice activated control module connector and BOSE speaker amp. connector.
Turn ignition switch ON.
The Speaker Adaptation (SA) mode ON and voice guide signal sent out, check voltage signal between voice activated control module harness connector B69 terminals 25 (L), 26 (R) and 23.

Fig 1: Checking Voice Signal
Courtesy of NISSAN MOTOR CO., U.S.A.

25 (L) - 23

26 (R) - 23

Refer to TERMINALS & REFERENCE VALUES FOR VOICE ACTIVATED CONTROL MODULE .

OK or NG

OK: Replace BOSE speaker amp.
NG: Replace voice activated control module.