( TL19E00J36100000000CAAT20 )

Navigation Unit Inputs and Outputs
Navigation Unit Connector C (16P)

Terminal Number | Wire Color | Terminal Name | Description | Voltage (about) | Symptom
--- | --- | --- | --- | --- | ---
7 | BLK | RG L+ (Route guidance voice left positive) | Left audio signal of voice guidance, and Voice Recognition (VR) *2 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.
8 *2 | GRN | HFT-NAVI MIC+ (HFT mic signal positive) | Microphone output signal positive | 4−5 V (TALK button pressed) | If open: microphone signal shown as red in diagnostic screens: System Links and Functional Setup Mic Level. If short to ground: microphone signal shown as red in diagnostic screens: System Links and Functional Setup Mic Level.
12 | PUR | STRG SW (Navigation remote switches) | Steering switch output | 4−5 V (TALK button pressed) 2.5−3 V (BACK button pressed) | If open: Steering wheel TALK and BACK buttons do not work. If short to ground: Steering wheel TALK, and BACK buttons do not work.
13 | GRY *1 | RG L SH (Route guidance shield) | Shield for terminals No. 7, 14 | 0 V | If open: No effect on voice output. If short to ground: No effect on voice output.
14 | WHT | RG L GND (Route guidance ground) | Ground for voice guidance, and Voice Recognition (VR) *2 prompts | 0 V | If open: No effect on voice output. If short to ground: No effect on voice output.
15 *2 | GRY *1 | HFT-NAVI MIC SH (HFT mic signal shield) | Shield for terminals No. 8, 16 | 0 V | If open: No effect on voice control. If short to ground: No effect on voice control.
16 *2 | RED | HFT-NAVI MIC OUT− (HFT mic signal negative) | Ground for microphone signal | 0 V | If open: microphone signal shown as red in diagnostics: System Links and Functional Setup Mic Level. If short to ground: No effect on voice recognition.

*1: | The shielded wires have a heat-shrink tube insulating the outside of the wire. The color of the insulating tube, typically black or dark gray, may not match the color of the wire shown on the circuit diagram.
*2: | KG and KE models