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Navigation Unit Inputs and Outputs

Fig 1: Identifying Navigation Display Unit A (8P)
G06163001Courtesy of AMERICAN HONDA MOTOR CO., INC.

Navigation Unit Connector A (8P) 

NAVIGATION UNIT CONNECTOR A (8P) REFERENCE

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. 5 (7.5 A) in the driver's under-dash 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. 32 (10 A) in the driver's under-dash fuse/relay box.
4 BLK GND (Ground) (G602) Ground for navigation unit 0 V If open: No effect on system.
If short to ground: No effect on system.
5 BRN BACK LT (Back light or reverse signal) Reverse signal of select lever from 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: Blows fuse No. 21 (10 A) in the driver's under-dash fuse/relay box.
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 GRN 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)
G06163002Courtesy of AMERICAN HONDA MOTOR CO., INC.

Navigation Unit Connector B (32P) 

NAVIGATION UNIT CONNECTOR B (32P) REFERENCE

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 ).
If short to ground: Red color missing (see ).
2 RED G SIG 1 (Green signal) Green color signal 0.7 VAC average in RGB color diagnostic mode If open: Green color missing (see ).
If short to ground: Green color missing (see ).
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 - 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. 4 (15 A) fuse in under-hood fuse/relay box.
8 WHT CAN-H (CAN high) F-CAN bus communication Pulses 2.5-6 V average 2.5 V (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) 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 ECU BUS+ (Display bus positive) Data bus+ GA-NET 0-5 V pulses average 2.5 V (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 ).
If short to ground: Blue color missing (see ).
18 BRN 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 BLU 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 - HVAC will not respond to navigation commands.
21 BRN AC-CLK (Air conditioner clock) Check signal for climate control unit - HVAC will not respond to navigation commands.
23 WHT 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 2.5 V 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 ECU BUS- (Display bus negative) Data bus- 0-5 V pulses 2.5 V 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)
G06163003Courtesy of AMERICAN HONDA MOTOR CO., INC.

Navigation Unit Connector C (16P) 

NAVIGATION UNIT CONNECTOR C (16P) REFERENCE

Terminal Number Wire Color Terminal Name Description Voltage (about) Symptom
7 RED RG-L+ (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 MIC SIG+ (HFL mic signal positive) Microphone output signal positive 4-5 V (navigation 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 PUR STRG SW (Navigation remote switches) Steering switch output 4-5 V (navigation TALK button pressed) 2.5-3 V (navigation BACK button pressed) If open: Steering wheel navigation TALK and navigation BACK buttons do not work.
If short to ground: Steering wheel navigation TALK, and navigation 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 snort to ground: No effect on voice output.
14 GRN 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) SH MIC (HFL mic signal shield) Shield for terminals No. 8,16 0 V If open: No effect on voice control.
If short to ground: No effect on voice control.
16 RED MIC SIG- (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)
G06163004Courtesy of AMERICAN HONDA MOTOR CO., INC.

Navigation Unit Connector D (5P) (with AcuraLink) 

NAVIGATION UNIT CONNECTOR D (5P) REFERENCE

Terminal Number Wire Color Terminal Name Description Voltage (about) Symptom
1 WHT HIP/HFL COMM3 (HFL communication 3) Communication signal for HFL 5 V DC Solid red HFL icon in Navi System Link.
Phone icon in Route To screen is grayed out.
2 BLK HIP/HFL COMM4 (HFL communication 4) Communication signal for HFL 4.5 V DC Solid red HFL icon in Navi System Link.
Phone icon in Route To screen is grayed out.
3 GRN 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 Route To screen is graved out.
4 BLK HIP/HFL COMM2 (HFL communication 2) Communication signal for HFL 4.5 V DC HFL icon in Navi System Link changes between red and green.
Phone icon in Route To screen is graved out.
5 GRY(1) HIP/HFL COMM SH (shield HFL) Shield for terminals No. 1, 2, 3,4 0 V -
(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) (without AcuraLink) 

NAVIGATION UNIT CONNECTOR D (5P) REFERENCE

Terminal Number Wire Color Terminal Name Description Voltage (about) Symptom
1 GRN HFL COMM3 (HFL communication 3) Communication signal for HFL - Solid red HFL icon in Navi System Link.
2 BLK HFL COMM4 (HFL communication 4) Communication signal for HFL - Solid red HFL icon in Navi System Link.
3 RED HFL COMM1 (HFL communication 1) Communication signal for HFL - HFL icon in Navi System Link changes between red and green.
4 WHT 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 (7P)
G06163005Courtesy of AMERICAN HONDA MOTOR CO., INC.
NAVIGATION UNIT CONNECTOR E (7P) REFERENCE

Terminal Number Wire Color Terminal Name Description Voltage (about) Symptom
1 WHT RC VCC Power source for rearview camera 8V If open: No rearview camera image in reverse.
If short to ground: No rearview camera image in reverse.
2 BLK RC GND Ground for rearview camera 0 V If open: No rearview camera image in reverse.
4 RED CAMERA GND Ground for rearview camera video signal 0 V If open: No rearview camera image in reverse.
5 YEL CAMERA V Video signal for rearview camera 0.3 VAC If open: No rearview camera image in reverse.
If short to ground: When put into reverse, navigation screen goes black (display backlight still operative).
6 GRY(1) CAMERA SH Shield for terminals No. 1, 2, 4, 5,7 - If open: No rearview camera image in reverse.
If short to ground: No rearview camera image in reverse.
7 GRN CAMERA (ADPT) Control signal for rearview camera 0-1 V If open: No rearview camera image in reverse.
If short to ground: No rearview camera image in reverse.
(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 6: Identifying Navigation Unit Connector F (2P)
G06163006Courtesy of AMERICAN HONDA MOTOR CO., INC.

Navigation Unit Connector F (2P) 

NAVIGATION UNIT CONNECTOR F (2P) REFERENCE

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 0 V If open: GPS icon on screen is white, system links screen ANT shows NG.
If short to body ground: No effect on system.
Fig 7: Identifying Navigation Display Unit 20P Connector
G06163007Courtesy of AMERICAN HONDA MOTOR CO., INC.

Navigation Display Unit 20P Connector 

NAVIGATION DISPLAY UNIT 20P CONNECTOR REFERENCE

Terminal Number Wire Color Terminal Name Description Voltage (about) Symptom
1 WHT +B (+B power source) Continuous power source Battery voltage If open; Screen completely off (no backlight visible).
If short to ground: Blows fuse No. 7 (10 A) in the driver's under-dash fuse/relay box.
2 PUR ACC (Accessory) Power source for accessory Battery voltage at ACC (I) If open: Display and buttons do not work.
If short to ground: Blows fuse No. 32 (10 A) in the driver's under-dash fuse/relay box.
3 GRN GA-NET BUS+ (GA-NET bus positive) Data bus+ GA-Net 0-5 V pulses average 2.5 V depends on bus traffic If open: Navigation buttons and touch screen do not work.
If short to ground: Navigation buttons do not work.
4 GRY(1) GA-NET BUS SH (GA-NET) Shield for terminals No. 3, 13 0 V If open: No change to display.
If short to ground: No change to display.
5 GRN ECU BUS+ (Display bus positive) Data bus+ GA-Net 0-5 V pulses average 2.5 V depends on bus traffic If open: Navigation buttons do not work.
If short to ground: Navigation buttons do not work.
6 LT GRN SECURITY+ Security signal to rear screen 0 V If open: The security system will set, and will not trip when screen is removed.
If short to ground: The security system will set, and will not trip when screen is removed.
8 WHT R SIG 1 (Red signal) Red color signal 0.7 VAC If open: Red color missing (see ).
If short to ground: Red color missing (see ).
9 RED G SIG 1 (Green signal) Green color signal 0.7 V AC If open: Green color missing (see ).
If short to ground: Green color missing (see ).
10 BLK GND (Ground) (G501) Ground for display unit 0 V If open: No change to display.
If short to ground: No change to display.
11 LT BLU ILL+ (Illumination positive) Parking light on signal from dash and console lights Battery voltage if lights on: otherwise 0 V If open: When brightness=Auto, night mode for the display is inoperative when lights on.
If short to ground: Blows fuse No. 7 (7.5 A) in the passenger's under-dash fuse/relay box.
13 RED GA-NET BUS- (GA-NET bus negative) Data bus- GA-Net 0-5 V pulses average 2.5 V depends on bus traffic If open: Navigation buttons do not work.
If short to ground: Hard buttons work OK.
14 GRY* SH ECU BUS (Shield ECU bus) Shield for display bus terminals No. 5, 15 0 V If open: No change to display.
If short to ground: No change to display.
15 RED ECU BUS- (Display bus negative) Data bus- GA-Net 0-5 V pulses average 2.5 V depends on bus traffic If open: Navigation buttons and touch screen do not work.
If short to ground: Hard and touch buttons work OK.
16 BRN SECURITY- Security signal from CD changer 0 V If open: The security system will set, and will not trip when screen is removed.
If short to ground: The security system will set, and will not trip when screen is removed.
17 BLU 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.
18 YEL B SIG 1 (Blue signal) Blue color signal 0-1V AC If open: Blue color missing (see ).
If short to ground: Blue color missing (see ).
19 BRN C SIG 1 (Composite signal) Composite video (vertical/horizontal) synchronizing signal 0.3 VAC If open: Picture rolls horizontally, colors still visible. If short to ground: Picture rolls horizontally, colors still visible.
20 GRY* SH SIG 1 (Shield signal) Shield for terminals No. 8, 9, 17, 18, 19 0 V If open: No change to display.
If short to ground: No change to display.
(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.
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