Navigation Unit Inputs and Outputs for Connector B (14P)

Terminal Number | Wire Color | Terminal Name | Description | Voltage (about) | Symptom
--- | --- | --- | --- | --- | ---
4 | WHT | 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 off, no effect. If short to ground: If voice activated, radio speakers buzz; if voice off, no effect.
5 | BRN | 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 SIG (+) (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 | GRY | STRG SW (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 | GRY | SH RG (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 | RED | GND RG (Ground routs guidance) | 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 | GRY | SH MIC (Shield mic) | 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 | GND MIC (Ground mic) | 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.