Terminals and Reference Value for Display unit
WARNING: This page is about a different car, the 2006 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.
DISPLAY UNIT TERMINALS AND REFERENCE VALUE
| Terminal No. (Wire color) | Item | Signal input/output | Condition | Voltage (Approx.) | Example of symptom | ||
|---|---|---|---|---|---|---|---|
| + | - | Ignition switch | Operation | ||||
| 1 (B) | Ground | Ground | - | ON | - | 0 V | - |
| 2 (L/W) | Ground | Power supply (Inverter) | Input | ON | - | 9 V | Screen is not shown. |
| 3 (L/R) | Ground | Power supply (Signal) | Input | ON | - | 9 V | Screen is not shown. |
| 6 (R/W) | 7 | RGB signal (G: green) | Input | ON | Select "Display Diagnosis (DCU)" of CONFIRMATION/ADJUSTMENT function. | Screen looks reddish. | |
| 7 | - | Shield ground | - | - | - | - | - |
| 8 (R) | 21 | Horizontal synchronizing (HP) signal | Output | ON | - | Operating screen for audio and A/C is not displayed when showing NAVI screen. | |
| 9 (B) | 21 | RGB area (YS) signal | Input | ON | Press the "TRIP" button. | RGB screen is not shown. | |
| 11 (B/W) | 23 | Display communication signal (DCU-DSP) | Input | ON | - | Though a screen is displayed, it is impossible to adjust brightness. | |
| 13 (P) | Ground | (Inverter) Ground | - | ON | - | 0 V | - |
| 14 (P/L) | Ground | (Signal) Ground | - | ON | - | 0 V | - |
| 17 (R/L) | 7 | RGB signal (R: red) | Input | ON | Select "Display Diagnosis (DCU)" of CONFIRMATION/ADJUSTMENT function. | Screen looks bluish. | |
| 18 (B) | 7 | RGB signal (B: blue) | Input | ON | Select "Display Diagnosis (DCU)" of CONFIRMATION/ADJUSTMENT function. | Screen looks yellowish. | |
| 19 (G) | 21 | RGB synchronizing signal | Input | ON | Press the "TRIP" button. | NAVI screen is rolling. | |
| 20 (W) | 21 | Vertical synchronizing (VP) signal | Output | ON | - | Operating screen for audio and A/C is not displayed when showing NAVI screen. | |
| 21 | - | Shield ground | - | - | - | - | - |
| 22 (L) | 23 | Display communication signal (DSP-DCU) | Output | ON | - | Though a screen is displayed, it is impossible to adjust brightness. | |
| 23 | - | Shield ground | - | - | - | - | - |