( TL19E00J36100000000CAAT20 )

Navigation Unit Inputs and Outputs
Navigation Unit Connector A (8P)

Terminal Number | Wire Color | Terminal Name | Description | Voltage (about) | Symptom
--- | --- | --- | --- | --- | ---
1 | WHT | +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 (KQ model). If short to ground: Blows fuse No. 15 (10 A) in the under-hood fuse/relay box.
2 | PUR | 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. 18 (7.5 A) in the driver's under-dash fuse/relay box.
4 | BLK | GND (Ground) (G651) | Ground for navigation unit | 0 V | If open: No effect on system. If short to ground: No effect on system.
5 | LT BLU | BACK LT (Back light or reverse signal) | 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. 5 (7.5 A) in the driver's under-dash fuse/relay box.
6 | BLU | VSP (Vehicle speed pulse) | Vehicle speed pulse signal from ECM/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 | RED | 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 key ON (I) and (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 jumper. If short to ground: No effect on system.