Here's a list of the connections I've made. If someone could just verify these I would appreciate it.
NC = Not Connected
H1
1.RED / White (-)200mA Aux/Trunk Output - NC
2.Red (+)12VDC Constant Input - +12V (10AWG fused wire connected directly to battery)
3.Brown (+)Siren Output - Red wire on siren
4.WHITE/ Brown Parking Light Isolation Wire (Pin 87a of onboard relay) - NC
5.Black (-)Chassis Ground - Grounded to screw drilled into kick panel
6.Violet (+)Door Trigger Input - NC
7.Blue (-)Trunk Pin/Instant Trigger Input - NC
8.Green (-) Door Trigger Input - BLACK/ Orange wire at dome light switch (Shows continuity to ground whenever any door or the hatch is opened)
9.BLACK/ White (-)200mA Dome Light Supervision Output - NC
10.WHITE/ Blue (-)Remote Start/Turbo Timer Activation Input - NC
11.White Parking Light Output - Brown wire at headlight switch (Shows +12V when parking lights are on; light flash polarity on module set to (+))
12.Orange (-)500mA Ground When Armed Output - NC
H2
1.Light GREEN/ Black (-)200mA OEM Alarm Disarm Output - NC
2.ORANGE / Black (-)200mA Aux 4 Output - NC
3.GREEN / WHITE (-)200mA OEM Alarm Arm Output - NC
4.Violet/Black (-)200mA Aux 2 Output - NC
5.WHITE/ Black (-)200mA Aux 3 Output - NC
6.WHITE/ Violet (-)200mA Aux 1 Ouput - NC
7.Grey/Black (-) Diesel Wait to Start Input - NC
8.BROWN / Black (-)200mA Horn Honk Output - Black Wire at steering column, shows (-) when horn is pressed
9.Violet/White Tachometer Input - NC
10.Dark Blue (-)200mA Status Output - NC
11.Pink/White (-)200mA Flex Relay Control Output - NC
12.Orange (-)200mA Accessory Output - NC
13.Purple (-)200mA Starter Output - NC
14.Pink (-)200mA Ignition 1 Output - NC
15.Grey (-)Hood Pin Input - To hood pin switch
16.Blue/White (-)200mA 2nd Status/Rear Defogger Output - NC
17.Brown (+)Brake Shutdown Input - White wire at brake switch, shows +12V when brake is depressed
18.BLACK/ White (-)Neutral Safety Input - NC
H3
1.Pink (+)Ignition 1 Input/Output - Pink wire, shows +12V in run and start positions
2.RED / White (87) Flex Relay Input (30A Fused) - Constant +12V
3.Orange (+)Accessory Output - Orange wire, shows +12V in run but not start position
4.Violet (+)Starter Output (Car Side Of Starter Kill) - Starter side of purple wire (cut), shows +12V in start position
5.Green (+)Starter Input (Key Side Of Starter Kill) - Ignition switch side of above purple wire
6.Red Ignition 1 Input (30A Fused) - Constant +12V
7.Pink/White (30) Flex Relay Output - NC
8.Pink/Black (87a) Flex Relay Input - NC
9.RED / Black Accessory/Starter Relay Input (30A Fused) - Constant +12V
10.No Connection
Door Lock
1.Blue (-)500mA Unlock Output - Green wire of Audiovox AS9159
2. Empty
3.Green (-)500mA Lock Output - Red wire of Audiovox AS9159
The truck already had an Audiovox AS9159 door lock interface module installed from a previous alarm. It accepts (-) pulses from alarm systems so I just left that alone and connected the 5901 wires accordingly.
All the above connections were made by soldering and then either using heat shrink if possible or electrical tape.
I'm not sure if it helps or not but I checked the 5901 with a DMM to try to find out why the horn was going off. I checked for continuity to pin H1/5 the chassis ground, and most of the outputs on the H2 harness show continuity. The outputs that show continuity are pins: 1-6, 8, 10-14, and 16. Also the ground when armed output on harness H1 and both the unlock and lock output wires. I don't know if this tells us anything but that doesn't seem right to me. That means that all of these (-) outputs are resting at ground and therefore being triggered even when the unit doesn't have power.
I'm sorry for the super long post. Any ideas that anybody has would be greatly appreciated.