2012 Honda Insight BaseFACTORY OEM SERVICE PROCEDURE

Audio-Navigation Unit Inputs and Outputs: Notes

WARNING: This page is about a different car, the 2011 Honda Insight and 2010 Honda Insight. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying Audio-Navigation Unit B (24P) Connector Terminals
G06431927Courtesy of AMERICAN HONDA MOTOR CO., INC.

Audio-Navigation Unit Connector B (24P) 

CONNECTOR TERMINALS REFERENCE CHART

Terminal Number Wire Color Terminal Name Description Voltage (about) Symptom
10 GRY(1) HFL COMM SH (HFL communication shield) Shield for terminal No. 11, 12, 23, 24 - -
11 LT BLU HFL COMM2 (HFL communication 2) Communication signal for HFL - HFL icon in Navi System Link changes between red and green
12 LT GRN HFL COMM4 (HFL communication 4) Communication signal for HFL - Solid red HFL icon in Navi System Link
23 ORN HFL COMM1 (HFL communication 1) Communication signal for HFL - HFL icon in Navi System Link changes between red and green
24 PNK HFL COMM3 (HFL communication 3) Communication signal for HFL - Solid red HFL icon in Navi System Link
(1) The shielded wires have a heat-shrunk 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 2: Identifying Audio-Navigation Unit C (8P) Connector Terminals
G06431928Courtesy of AMERICAN HONDA MOTOR CO., INC.

Audio-Navigation Unit Connector C (8P) 

CONNECTOR TERMINALS REFERENCE CHART

Terminal Number Wire Color Terminal Name Description Voltage (about) Symptom
1 PNK +B BACK UP 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. 1 (15 A) in the under-dash fuse/relay box.
4 BLK GND Ground for audio-navigation unit 0 V If open: No effect on system.
If short to ground: No affect on system.
5 GRN BACK LT Reverse signal of select lever from Multiplex integrated Control unit In reverse, battery voltage: Otherwise 0 V If open: Navigation never sees the reverse signal and the vehicle icon move forward when driving in reverse. Diagnostic screen Car Status, Back = 0.
If short to ground: Blows fuse No. 5 (10 A) in the under-dash fuse/relay box.
Fig 3: Identifying Audio-Navigation Unit D (12P) Connector Terminals
G06431929Courtesy of AMERICAN HONDA MOTOR CO., INC.

Audio-Navigation Unit Connector D (12P) 

CONNECTOR TERMINALS REFERENCE CHART

Terminal Number Wire Color Terminal Name Description Voltage (about) Symptom
1 ORN NAVI GUIDE Steering wheel switch output No button pressed 2.5 V Talk button pressed 2.2 V Back button pressed 1.5 V 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.
5 WHT AC-SI A/C input signal 0-battery voltage pulses If open: voice control of HVAC does not work.
If short to ground: Voice control of HVAC does not work.
6 YEL AC-SO A/C output signal 0-battery voltage pulses If open: voice control of HVAC does not work.
If short to ground: voice control of HVAC does not work.
7 GRN MIC SIG - Ground for microphone signal 0 V If open: No microphone signal shown in diagnostics: Navi System Link and Functional Set up Mic Level.
If short to ground: No affect on voice recognition.
8 RED MIC SIG + Microphone output signal positive 4-5 V (with navigation TALK button pressed) If open: No microphone signal shown in diagnostic screens: Navi System Link and Functional Setup Mic Level.
If short to ground: No microphone signal shown in diagnostic screens: Navi System Link and Functional Setup Mic Level.
9 GRY(1) MIC SH Shield for terminal No. 7, 8 0 V If open: No affect on voice recognition.
If short to ground: No affect on voice recognition.
12 BRN AC-CLK Time set sync signal 0-battery voltage pulses If open: voice control of HVAC does not work.
If short to ground: voice control of HVAC does not work.
(1) The shielded wires have a heat-shrunk 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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