Navigation Unit Inputs and Outputs for Connector C (8P)
WARNING: This page is about a different car, the 2005 Acura TSX and 2004 Acura TSX. However, it is still accessible from the selected car via links, so may be relevant.
SYMPTOM REFERENCE
| 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 (10A) 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 (Back light) | 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 | Pulses 0-5 V: Average 2.5 V, 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. |