Navigation Unit Connector A (8P)
TERMINAL VOLTAGE REFERENCE TABLE
| Terminal Number | Wire Color | Terminal Name | Description | Voltage (about) | Symptom |
|---|---|---|---|---|---|
| 1 | WHT | +B (Battery 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. 23 (10 A) in the under-hood fuse/relay box. |
| 2 | PUR | ACC (Accessory) | Power source for accessories | Battery voltage at ACCESSORY (I) | If open: Display picture goes out (display back light still on). If short to ground: Blows fuse No. 35 (10 A) in the under-dash fuse/relay box. |
| 4 | BLK | GND (Ground) | Ground for navigation unit (G605) | 0 V | If open: No effect on system. If short to ground: No effect on system. |
| 5 | ORN | BACK LT-(Back light or reverse signal) | Reverse signal of select lever from MICU (Multiplex Integrated Control Unit) | In reverse, battery voltage: Otherwise 0 V | If open: Navigation never sees reverse. Diagnostic screen Car Status, Back=0. If short to ground: Check the backup light circuit. |
| 6 | BLU | VSP (Vehicle speed pulse) | Vehicle speed pulse signal from PCM | 0 5 V pulses average 2.5 V (Depending on bus traffic) | 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 | GRY | DIAG+ (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 at ignition switch ACCESSORY (I) and ON (II). |
| 8 | YEL | DIAG-(Diagnostic negative) | Ground for service check signal | 0 V | If open: The system will not go into diagnostic mode when using the SCS service check connector. If short to ground: No effect on system. |