AUDIO
AV-35
C
D
E
F
G
H
I
J
L
MA
B
AV
Revision: 2006 November2007 350Z
Terminals and Reference Value for BOSE Speaker Amp.NKS002BB
Terminal
(Wire color)
ItemSignal
input/
outputCondition
Reference value
+–Ignition
switchOperation
11 (Y) Ground Battery power supply Input ON — Battery voltage
14 — Shield — — — —
17 (R/B) 18 (R/W) Microphone signal Input ONWhen inputting some
sounds (voice, etc.) toward
the microphone
19 (W/R) 20 (OR/B) Audio signal rear LH Output ON Receive audio signal
21 (GY/R) 22 (GY) Audio signal rear RH Output ON Receive audio signal
23 (B/W) 24 (W/G) Audio signal front LH Output ON Receive audio signal
25 (BR) 26 (B/R) Audio signal front RH Output ON Receive audio signal
27 (B) Ground Ground — ON — Approx. 0 V
28 (W) 12 (OR) Audio signal woofer Output ON Receive audio signal
31 (Y/R) GroundAudioPilot
® ON/OFF
signalInput ONAudioPilot® OFFApprox. 7.5 V
AudioPilot
® ONApprox. 0 V
32 (G/R) GroundWoofer amp. ON
signalOutput ON — Approx. 12 V
PKIA2104E
SKIB3609E
SKIB3609E
SKIB3609E
SKIB3609E
SKIB3609E
AUDIO
AV-45
C
D
E
F
G
H
I
J
L
MA
B
AV
Revision: 2006 November2007 350Z
4. CHECK HARNESS
1. Turn ignition switch OFF
2. Disconnect BOSE speaker amp. and microphone connectors.
3. Check continuity between BOSE speaker amp. harness connec-
tor T7 terminal 17 and microphone harness connector E123 ter-
minal 1.
4. Check continuity between BOSE speaker amp. harness connec-
tor T7 terminal 17 and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair harness or connector.
5. CHECK HARNESS
1. Check continuity between BOSE speaker amp. harness connec-
tor T7 terminal 18 and microphone harness connector E123 ter-
minal 2.
2. Check continuity between BOSE speaker amp. harness connec-
tor T7 terminal 18 and ground.
OK or NG
OK >> GO TO 6.
NG >> Repair harness or connector.
6. CHECK MICROPHONE SIGNAL
1. Connect BOSE speaker amp. and microphone connectors.
2. Turn ignition switch ON.
3. Check voltage waveform between BOSE speaker amp. harness
connector T7 terminal 17 and 18 using oscilloscope, when input-
ting some sounds (voice, etc.) toward the microphone.
Does the voltage waveform change with sounds?
YES >> Replace BOSE speaker amp.
NO >> Replace microphone.17 – 1 : Continuity should exist.
17 – Ground : Continuity should not exist.
SKIA3105E
18 – 2 : Continuity should exist.
18 – Ground : Continuity should not exist.
SKIA3106E
17 – 18:
SKIA3104EPKIA2104E
