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Navigation Unit Inputs and Outputs

Fig 1: Identifying Navigation Unit Connector A (8P) Terminal
G05995492Courtesy of AMERICAN HONDA MOTOR CO., INC.

Navigation Unit Connector A (8P) 

NAVIGATION UNIT CONNECTOR A (8P)TERMINALS REFERENCE CHART

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 If short to ground Blows fuse No 15(10A) 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 0V 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 5V (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
Fig 2: Identifying Navigation Unit Connector B (32P) Terminal
G05995493Courtesy of AMERICAN HONDA MOTOR CO., INC.

Navigation Unit Connector B (32P) 

NAVIGATION UNIT CONNECTOR B (32P) TERMINALS REFERENCE CHART

Terminal Number Wire Color Terminal Name Description Voltage (about) Symptom
1 WHT R SIG 1 (Red signal) Red color signal 0 7 V AC average If open Red color missing (see RGB Color diagnostic)
If short to ground Red color missing (see RGB Color diagnostic)
2 RED G SIG 1 (Green signal) Green color signal 07 V AC average in RGB color diagnostic mode If open Green color missing (see RGB Color diagnostic)
If short to ground Green color missing (see RGB Color diagnostic)
3 GRY(1) SH SIG 1 (Shield signal) Shield for terminals No 1,2,17,18,19 0 V If open No change to display
If short to ground No change to display
4 ORN AC-SI (Air conditioner serial in) Communication signal for climate control unit - If open/short HVAC will not respond to navigation commands
5 GRY ILL+ (Illumination positive) Parking light on signal Lights on battery voltage, Lights off 0 V If open When brightness = Auto, night mode for the display is inoperative when lights on
If short to ground Blows No 6 (7 5 A) fuse in passenger's under-dash fuse/relay box
8 WHT CAN-H (CAN high) F-CAN bus communication Pulses 2 5-6 V average 2 5V (depends on F-CAN communication traffic) If open
  1. System Links FI-ECU, and Meter both show NG
  2. F-CAN diagnostic = NG
  3. B-CAN diagnostic = NG
  4. Car status CHG (CAN) = 0
  5. Functional Setup, Trip info, FUP&Sampled FL = 0

If short to ground Same diagnostic conditions as when open, and also sets the following DTCs
  • B1168 Gauge Control Module loss of Comm (Engine)
  • B1169 Gauge Control Module loss of Comm (A/T)
  • B1178 F-CAN communication Circuit error
  • U0073 (F-CAN bus off)
  • U0155 (F-CAN Gauge control module)
  • U0121 (F-CAN VSA control)
9 GRY(1) GA-NET SH ECU BUS (Shield display bus) Shield for display bus No 10,26 terminal 0 V If open No change to display
If short to ground No change to display
10 GRN GA-NET ECU BUS+ (Display bus positive) Data bus+ GA-NET 0-5 V pulses average 2 5V (depends on bus traffic) If open Navigation buttons do not work
If short to ground Navigation buttons do not work
17 YEL B SIG 1 (Blue signal) Blue color signal 0 2 V AC average in RGB color diagnostic mode If open Blue color missing (see RGB Color diagnostic)
If short to ground Blue color missing (see RGB Color diagnostic)
18 BLK C SIG 1 (Composite signal) Composite video (vertical/horizontal) Synchronizing signal 0 2 V AC average in RGB color diagnostic mode If open Picture rolls horizontally, colors still visible
If short to ground Picture rolls horizontally, colors still visible
19 GRN GND SIG 1 (Ground signal) Ground for color signal 0 V If open No change to display
If short to ground No change to display
20 PUR AC-SO (Air conditioner serial out) Communication signal for climate control unit - If open or short HVAC will not respond to navigation commands
21 BRN AC-CLK (Air conditioner clock) Check signal for climate control unit - If open or short HVAC will not respond to navigation commands
23 BLK JOG (Interface dial Jog) Interface dial operation signal 0-5 V pulses If open You cannot operate navigation system
If short to ground You cannot operate navigation system
24 RED CAN-L (CAN low) F-CAN bus communication Pulses 2 5-6 V 2 5V average (depends on bus traffic) If open
  1. System Links PCM, and Gauge Control Module both show NG
  2. F-CAN diagnostic = NG
  3. B-CAN diagnostic = NG
  4. Car status CHG (CAN) = 0
  5. Functional Setup, Trip info, FUP&Sampled FL = 0

If short to ground Same diagnostic conditions as when open, and also sets the following DTCs
  • B1168 Gauge Control Module loss of Comm (Engine)
  • B1169 Gauge Control Module loss of Comm (A/T)
  • B1178 F-CAN communication Circuit error
  • U0073 (F-CAN bus off)
  • U0155 (F-CAN Gauge control module)
  • U0121 (F-CAN VSA control)
25 GRY(1) SH JOG (Interface dial Shield jog) Shield for interface dial signal - -
26 RED GA-NET ECU BUS-(Display bus negative) Data bus- 0-5 V pulses 2 5V average (depends on bus traffic) If open Navigation buttons do not work
If short to ground Hard buttons work OK
(1) The shielded wires have a heat-shrink tube insulating the outside of the wire

The color of the insulating tube, typically black or dark gray, may not match the color of the wire shown on the circuit diagram
Fig 3: Identifying Navigation Unit Connector C (16P) Terminal
G05995494Courtesy of AMERICAN HONDA MOTOR CO., INC.

Navigation Unit Connector C (16P) 

NAVIGATION UNIT CONNECTOR C (16P) TERMINALS REFERENCE CHART

Terminal Number Wire Color Terminal Name Description Voltage (about) Symptom
7 BLK RGL+ (Route guidance voice left positive) Left audio signal of voice guidance, and Voice Recognition (VR) prompts Audio signal 0 004-0 04 V If open If voice activated, radio speakers buzz, if voice off, no effect
If short to ground If voice activated, radio speakers buzz, if voice off, no effect
8 GRN HFL-NAVI MIC+ (HFL mic signal positive) Microphone output signal positive 4-5 V (TALK button pressed) If open microphone signal shown as red in diagnostic screens System Links and Functional Setup Mic Level
If short to ground microphone signal shown as red in diagnostic screens System Links and Functional Setup Mic Level
12 BRN STRG SW (Navigation remote switches) Steering switch output 4-5 V (TALK button pressed) 2 5-3 V (BACK button pressed) If open Steering wheel TALK and BACK buttons do not work
If short to ground Steering wheel TALK, and BACK buttons do not work
13 GRY(1) RG LSH (Route guidance shield) Shield for terminals No 7,14 0 V If open No effect on voice output
If short to ground No effect on voice output
14 WHT RG L GND (Route guidance ground) Ground for voice guidance, and Voice Recognition (VR) prompts 0 V If open No effect on voice output
If short to ground No effect on voice output
15 GRY(1) HFL-NAVI MIC SH (HFL mic signal shield) Shield for terminals No 8,16 0V If open No effect on voice control
If short to ground No effect on voice control
16 RED HFL-NAVI MIC OUT-(HFL mic signal negative) Ground for microphone signal 0 V If open microphone signal shown as red in diagnostics System Links and Functional Setup Mic Level
If short to ground No effect on voice recognition
(1) The shielded wires have a heat-shrink tube insulating the outside of the wire

The color of the insulating tube, typically black or dark gray, may not match the color of the wire shown on the circuit diagram
Fig 4: Identifying Navigation Unit Connector D (5P) Connector Terminal
G05995495Courtesy of AMERICAN HONDA MOTOR CO., INC.

Navigation Unit Connector D (5P) USA models 

NAVIGATION UNIT CONNECTOR D (SP) USA MODELS TERMINALS REFERENCE CHART

Terminal Number Wire Color Terminal Name Description Voltage (about) Symptom
1 GRN HIP/HFL COMM3 (HFL communication 3) Communication signal for HFL 5 V DC Solid red HFL icon in Navi System Link
Phone icon in the Route To screen is grayed out
2 BLK HIP/HFL COMM4 (HFL communication 4) Communication signal for HFL 45 V DC Solid red HFL icon in Navi System Link
Phone icon in the Route To screen is grayed out
3 WHT HIP/HFL COMM1 (HFL communication 1) Communication signal for HFL 5 V DC HFL icon in Navi System Link changes between red and green
Phone icon in the Route To screen is grayed out
4 RED HIP/HFL COMM2 (HFL communication 2) Communication signal for HFL 45 V DC HFL icon in Navi System Link changes between red and green
Phone icon in the Route To screen is graved out
5 GRY(1) HIP/HFL COMM SH (shield HFL) Shield for terminals No 1,2, 3,4 0V -
(1) The shielded wires have a heat-shrink tube insulating the outside of the wire

The color of the insulating tube, typically black or dark gray, may not match the color of the wire shown on the circuit diagram

Navigation Unit Connector D (5P) Canada models 

NAVIGATION UNIT CONNECTOR D (5P) CANADA MODELS TERMINALS REFERENCE CHART

Terminal Number Wire Color Terminal Name Description Voltage (about) Symptom
1 RED HFL COMM3(HFL communication 3) Communication signal for HFL - Solid red HFL icon in Navi System Link
2 WHT HFL COMM4 (HFL communication 4) Communication signal for HFL - Solid red HFL icon in Navi System Link
3 BLK HFL COMM1 (HFL communication 1) Communication signal for HFL - HFL icon in Navi System Link changes between red and green
4 GRN HFL COMM2(HFL communication 2) Communication signal for HFL - HFL icon in Navi System Link changes between red and green
5 GRY(1) HFL COMM SH (HFL communication shield) Shield for terminals No 1,2, 3,4 - -
(1) The shielded wires have a heat-shrink tube insulating the outside of the wire

The color of the insulating tube, typically black or dark gray, may not match the color of the wire shown on the circuit diagram
Fig 5: Identifying Navigation Unit Connector E (2P) Terminal
G05995496Courtesy of AMERICAN HONDA MOTOR CO., INC.

Navigation Unit Connector E (2P) 

NAVIGATION UNIT CONNECTOR E (2P) TERMINALS REFERENCE CHART

Terminal Number Wire Color Terminal Name Description Voltage (about) Symptom
1 - SIG (GPS) GPS signal 5V If open GPS icon on screen is white, system links screen ANT shows NG
If short to body ground Same as open
2 - SH (GPS) Ground for GPS signal 0V If open GPS icon on screen is white, system links screen ANT shows NG
If short to body ground No effect on system
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