blower motor

Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=133199
Printed Date: July 19, 2025 at 5:13 PM

Topic: blower motor

Posted By: super03duty
Subject: blower motor
Date Posted: January 06, 2013 at 9:23 AM

I recently installed an Autopage rs900 remote start in my 2003 f350 7.3l diesel and now my blower motor has constant power!!!! i have checked all the wires in the system and they are all correct. i will copy and paste the wiring diagram on this thread. Someone please help fast!!!!

Replies:

Posted By: super03duty
Date Posted: January 06, 2013 at 9:32 AM

SYSTEM WIRES PIN# TRUCK WIRE          LOCATION
H10. 20 PIN CONNECTOR
Black / White Wire: (-) Neutral Safety Switc h Input         H1    GROUND
Black / Violet Wire: (-) 200 mA Channel 6 Programmable Output         H2 NOT USED
Pink Wire: 2-Step Unlock /Factory Disarm /Sensor By-pass     H3       PINK/LTGREEN       KICK PANEL
White Wire: (-) 200mA Dome Light Control Output         H4          BLK/LT BLUE    PASS KICK PANEL
Black / Red Wire: (-) 200 mA Channel 5 Programmable Output           H5 NOT USED
Bl ack / Green Wire: ( -) 20 0mA Chann el 4 Programmable Output     H6 NOT USED
Gray Wire: (-) 200mA Channel 2 (Trunk) Output H7 NOT USED
Brown / White Wire: (-) 200mA Horn Output (P rogrammable) H8 BLUE STEERING COLUMN
Yellow Wire: (-) 200mA Ig nition 3 Control Output          H9    NOT USED
Blue / Black Wire: (-) 200mA Accessory 2 Control Output          H10    To extra Relay Pin 85      *** See wiring below
Blue Wire:(-) Zone 2 Negative Hood/Trunk trigger         H20 Not Used
White / Green Wire: (-) Diesel Wait-To-Start Input           H19 VLT/OR-WT/LTGN
White / Blue Wire: (-) Instant Start and Turn Off Input     H18 Not Used
Green Wire : Zone 3 (-) Negative Door Pin Trigger        H17 NOT USED
Violet Wire: Zone 3 (+) Positive Door Trigger     H16 BLK/BLUE (+)     KICK PANEL
White / Red Wire: Tachometer Signal Input       H15   WHT/PINK (-)      BCM
White / Black Wire: (-) Negative Hood Pin Safety Shut Down    H14 HOOD SWITCH
White / Violet Wire: (+) Brake Switch Shut Down Input H13    LT GREEN (+) BRAKE SWITCH
Orange Wire: (-) 500mA Grounded Output When Armed          H12       NOT USED
Orange / White Wire: ( -) 200mA Grounded Output When Disarmed H11     NOT USED

H1 6 PIN HEAVY GAUGE WIRE HARNESS
Red: Remote Start Power 1 YELLOW IGNITION HARNESS
Red: Remote Start Power 2          GREEN/ VIOLET       IGNITION HARNESS
Violet: Starter (+) Output          GREEN (12V START ONLY)     IGNITION HARNESS
Pink: Ignition 2 (+) Output           RD/BLK (12V ON)        IGNITION HARNESS
Yellow: Ignition 1 (+) Output        RD/LT GRN or WHT / YELLOW (12V ON)     IGNITION HARNESS
Brown: Acc/Heater (+) Output           GRAY / YELLOW (12V ACC)           IGNITION HARNESS

H2 5 PIN WIRE HARNESS
RED / White: Parking Light Relay Power Input      with Red to +12V
White: Parking Light Relay Output       Brown        @ Headlight Switch
Black: System Main Ground (-) GROUND
Brown: Siren (+) Output      TO THE SIREN
Red: 12v + Battery Power    CONS 12V

H7 451M
1. Blue Wire ( - ) Lock Pulse 1N4001 w/band towards RS900 Blue
( + ) Unlock Pulse
3. Green Wire ( - ) Unlock Pulse 1N4001 w/band towards RS900 Green
(+) Lock Pulse

Extra ACC2 Relay
Relay Pin 85 to RS900 H10 Pin 10 Blue / Black Wire
Relay Pin 86 and 87 to +12V constant
Relay Pin 30 to F350 Acc2 BLUE/LT GREEN @ ignition harness
Relay Pin 87a not used - insulate

Posted By: yellow_cake
Date Posted: January 06, 2013 at 9:38 AM

You mean the blower motor stays in one speed and can't be adjusted? Does it do this all the time or only when remote started?
If it's doing it all the time, you blower motor resistor may have failed. It's not uncommon and may not have had anything to do with the remote starter. Was it working at all after the R/S install or did it have the problem immediately after installation?

Posted By: super03duty
Date Posted: January 06, 2013 at 9:50 AM

Yesterday was the first time i drove the truck since the install last week. The resistor is fine. everything works like it should with the blower motor except that is has 12v to is at all times. So if the the key is off i can still turn on the blower motor. i have been checking wires all morning, cant find anything wrong. i can shut the blower off by tuning the blower switch to off but it will not shut off with the key like its supposed to .

Posted By: yellow_cake
Date Posted: January 06, 2013 at 10:31 AM

Can you post how you have the accessories wires hooked up? It appears your truck has 3.
I would test which one of your truck's acc is getting 12v with the truck off, then back track the wires from there.
If you're using an external relay, I would make sure you have the pins right.

Posted By: super03duty
Date Posted: January 06, 2013 at 10:43 AM

I posted that right after i started the thread. I did find that the brown wire from the remote start is hooked to the gray / YELLOW, which is how all the diagrams i show say its supposed to be. But the gray / YELLOW has constant power. so i unhooked that and it sill does the same thing im going to switch the brown wire and h10 #10 BLACK/ blue wire. see what happens