Navigation Unit Inputs and Outputs for Connector B (14P)
Terminal Number
Wire Color
Terminal Name
Description
Voltage (about)
Symptom
4
RED
RG R (+) (Route guidance voice right positive)
Right audio signal of voice guidance, and Voice Recognition (VR) prompts
Audio signal 0,004−0.04 V
If open: If voice activated, radio speakers buzz; if voice of, no effect.
If short to ground: If voice activated, radio speakers buzz; if voice off, no effect.
5
WHT
RG L (+) (Route guidance voice left positive)
Left audio signal of voice guidance, and Voice Recognition (VR) prompts
Audio signal 0.004−0.04 V
If open: If voice activated, radio speakers buzz; if voice off, no effect.
If short to ground: If voice activated, radio speakers buzz; if voice off, no effect.
6
BLU
MIC OUT (+) (Mic signal positive)
Microphone output signal positive
4−5 V (with TALK button pressed)
If open: No microphone signal shown in diagnostic screens: ‘‘Navi System Link'' and Functional Setup ‘‘Mic Level''.
If short to ground: No microphone signal shown in diagnostic screens: ‘‘Navi System Link'' and Functional Setup ‘‘Mic Level''.
10
PUR
NAVI STRG SWITCH (Steering switches)
Steering switch output
4−5 V (Talk button depressed)
2.5−3 V (Back button depressed)
If open: Steering wheel ‘‘Talk‘‘, and ‘‘Back‘‘ switch/buttons do not work.
If short to ground: Steering wheel ‘‘Talk'', and ‘‘Back'' switch/buttons do not work.
11
ORN
RG SHIELD GND (Shield route guidance)
Shield for terminal No. 5, 12
0 V
If open: No effect on voice output.
If short to ground: No effect on voice output.
12
BLK
RG GND (Routs guidance ground)
Ground for voice guidance, and Voice Recognition (VR) prompts
0 V
If open: No effect on voice output.
If short to ground: No effect on voice output.
13
BRN
MIC OUT SHIELD (Mic shield)
Shield for terminal No. 6, 14
0 V
If open: No effect on voice recognition.
If short to ground: No effect on voice recognition.
14
PNK
MIC OUT (−) (Mic ground)
Ground for microphone signal
0 V
If open: No microphone signal shown in diagnostics: ‘‘Navi System Link'' and Functional Setup ‘‘Mic Level''.
If short to ground: No effect on voice recognition.