Audio-Navigation Unit Connector A (24P)
NOTE:
Refer to the audio system service information for the terminals inputs and outputs not shown (see
AUDIO UNIT CONNECTOR FOR INPUTS AND OUTPUTS (WITH NAVIGATION)
).
AUDIO-NAVIGATION UNIT CONNECTOR A (24P)
| Terminal Number | Wire Color | Terminal Name | Description | Voltage (about) | Symptom |
|---|---|---|---|---|---|
| 4 | WHT | SCTY2 | Security signal to navigation display unit | 0 V | If open: The security system sets, and does not trip when the audio-navigation unit is removed. If short to ground: The security system sets, and does not trip when the audio-navigation unit is removed. |
| 12 | BLK | GND (Ground) | Ground for audio-navigation unit(G502) | 0 V | If open: Possible erratic system operation. If short to ground: No effect on system. |
| 14 | PUR | ACC (Accessory) | Power source for accessories | Battery voltage at ACC mode | If open: Display picture goes out (display back light still on). If short to ground: Blows the No. 18 (7.5 A) fuse in the driver's under-dash fuse/relay box. |
| 15 | BLK | VSP (Vehicle speed pulse) | Vehicle speed pulse from PCM | 0-5 V pulses average 2.5 V (depends on vehicle speed) | If open: No vehicle speed pulse. Diagnostic screen Car Status, VSP=0. If short to ground: No vehicle speed pulses. Diagnostic screen Car Status, VSP=0. |
| 24 | WHT | + B (+ B power source) | Continuous power source | Battery voltage | If open: Navigation display picture goes out (display back light still on).
NOTE:
System reboots to enter code screen. If short to ground: Blows the No. 15 (10 A) fuse in the under-hood fuse/relay box. |