Navigation Unit Inputs and Outputs for Connector C (8P)
WARNING: This page is about a different car, the 2008 Acura TSX, 2007 Acura TSX, and 2006 Acura TSX. However, it is still accessible from the selected car via links, so may be relevant.
NAVIGATION UNIT INPUTS AND OUTPUTS FOR CONNECTOR C (8P)
| Terminal Number | Wire Color | Terminal Name | Description | Voltage (about) | Symptom |
|---|---|---|---|---|---|
| 1 | WHT/RED | +B (+B Power source) | Continuous power source | Battery voltage | If open: Display picture goes out (display back light still on).
NOTE:
System will reboot to "enter code" screen. If short to ground: Blows fuse No. 7 (10 A) in the under-dash fuse/relay box.
|
| 2 | YEL/RED | ACC (Accessory) | Power source for accessories | Battery voltage at ACC (I) | If open: Display picture goes out (display back light still on). If short to ground: Blows fuse No. 32 (7.5 A) in the under-dash fuse/relay box. |
| 4 | BLK | GND (Ground) | Ground for navigation unit | 0 V | If open: No effect on system. If short to ground: No effect on system. |
| 5 | GRN | BACK LT (Backlight) | Reverse signal of select lever from "Multiplex Integrated Control Unit" (A/T) or backup light switch (M/T) | In reverse, battery voltage: Otherwise 0 V | If open: Navigation never sees reverse. Diagnostic screen "Car Status", "Back" = 0. If short to ground: Blows fuse No. 21 (7.5 A) in the under-dash fuse/relay box. |
| 6 | BLU/WHT | VSP (Vehicle speed pulse) | Vehicle speed pulse signal from PCM | Stopped: 10-11 V DC Average 5 V AC, when moving | If open: No vehicle speed pulses. Diagnostic screen "Car Status", VSP Navi = 0. If short to ground: No vehicle speed pulses. Diagnostic screen "Car Status", VSP Navi = 0. |
| 7 | GRN/RED | DIAG P (Diagnostic positive) | Service check signal for navigation system | 5-6 V | If open: No effect on system. If short to ground: System goes into diagnostic mode. |
| 8 | GRN/YEL | DIAG N (Diagnostic negative) | Ground for service check signal | 0 V | If open: No effect on system. If short to ground: No effect on system. |