Accord ’06 Carputer – Schematics and Pinouts

For my own information these are the block schematic diagrams of the HVAC system and pinout of the 22-pin connector that controls all the fans and flap motors.

IMG_0325

IMG_0326

Pinout for the 22-Pin HVAC Connection (Green)
Pin Wire Color Signal
1 Blue A/C Pressure(Enable) Switch Output (Active Low)
2 Red/Yellow Mode 1 Input (Active Grounded to pin 9)
3 Red/Blue Mode 2 Input (Active Grounded to pin 9)
4 White/Blue Mode 3 Input (Active Grounded to pin 9)
5 Yellow/Green Mode 4 Input (Active Grounded to pin 9)
6 Yellow/Black Rear Window Defogger Relay Output (Active Low)
7 Light Green/Red Air Source Motor (Recirculate Direction) Output (Active Low)
8 Green/White Air Source Motor (Fresh Direction) Output (Active Low)
9 Red/Black Sensor Common Ground Output (Tie to Pin 22)
10 Brown A/C Evaporator NTC Thermistor Input
11 Yellow/Red Mode Flap Motor (Vent Direction) Output (+12V and Gnd on pin 12)
12 Yellow/Blue Mode Flap Motor (Defrost Direction) Output (+12V and Gnd on pin 11)
13 Pink/Blue Air Mix Flap Motor (Hot Direction) Output (+12V and Gnd on pin 14)
14 Green Air Mix Flap Motor (Cool Direction) Output (+12V and Gnd on pin 13)
15 Blue/Red Blower BJT Collector Input
16 Blue/Yellow Blower Power BJT Base Output
17 Pink/Black Air Mix Potential Input (Center tap of Pot. ~0.5V-4.5V)
18 Gray Air Mix Potential +5V Output (Tie to +5V)
19 N/C N/C N/C
20 Black/Yellow IG2 (Battery Power +12V) Input
21 N/C N/C N/C
22 Black Ground (G503) Input

22-con pinout

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~ by lwalkera on September 27, 2009.

One Response to “Accord ’06 Carputer – Schematics and Pinouts”

  1. Hi,

    where did you get thos circuits from?? Do you have a pdf of that, which you could send me?? I would like to install an aftermarket radio in my accord 04, but without removing the original panel. Maybe there is a way, to make a small cicruit, that would translate display data from aftermarket radio to existing LCD display in OEM panel, and also translate controls from it, like play, stop, on/off, change source and so on to a new aftermarket radio??
    Or maybe just on, which translate climatronic data (fan, temperature) to a LCD display of an aftermarket radio??
    Thanks for any help.

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