I know there are a lot of threads on the OHC already but I couldn't find the answer to my question. I installed my OHC last night, well actually I got done at like 3 am this morning. When I plug the OHC in the map light is on, but nothing else is. When I close my door the light stays on. I had to disconnects the OHC so the light wouldn't drain my battery. Did I not connect the wires correctly? I figure it's the wires that connect behind my stereo so I will check those later and make sure they are making a connection. I followed the walk-through here, http://www.cardomain.com/ride/296394/4 , and did exactly what is posted. Any suggestions would be appreciated.

Thanks for the help! I think this is my first post on here.

Cory

 

Wire colors change from year to year, I used this as a guide and figured out what I needed to do.

 

I figured out part of it. I had both the wires that went to the dome light connected to the same wire. I moved the black/blue one to the black/blue wire on the dome light and it all worked perfect. I didn't test the dimer though, but I will do that tomorrow.

Thanks for the diagram. Now I just need to find that bit about what area I am so I can sync the navigation part.

Cory

 

The OHC is mounted and running perfectly. It's such a great mod! I am enjoying the directional and the tempurature so much. Thanks all for the idea and help.

Cory

 

I am glad you like it, I love mine.

 

I love it. I think Ford should sell the Ranger with the OHC installed already. But then I guess they wouldn't be so cool if everybody had one.

 

Alright Ive looked all over and before I hook this thing up wrong and fry my OHC I need some input please. Here is my pin setup

1 N/U
2 BK Ground
3 GY/Y Power
4 GY/BK GEM
5 GR/OR Dome Light
6 BK/LB Dome Light
7 N/U
8 RD/BK ??????????? I have not seen this on any write up yet I have 3 harnesses with this color
9 LB/Y Temp Sensor
10 LB/W Temp Sensor

 

Pin 8 should be the dimmer circuit of light blue/red.

 

I have 3 diff wiring harnesses for OHC's and they all have a Red wire with a Black stripe.

 

This is what I followed:
1. Black (BK) - ground

2A. Yellow/Gray (YE/GY) - console electronics power
2B. Blue/Red (BL/RD) - console display dimmer input

3A. Green/Orange(GN/OR) - Map light power
3B. Black/Blue(BK/BL) - Dome light power

4A. Lt. Blue/White (BL/WH) - Temp sensor
4B. Lt. Blue/Yellow (BL/YE) - Temp sensor

5. Gray/Black (GY/BK) - speed sensor (not used by some, but necessary)

You can find more here, http://www.cardomain.com/ride/296394/3 , go to page two for more info also.

 

The red black on pin 8 should be tied into light blue/red on your truck.

To verify, don't hook it up. If the light does not dim when you turn on the head lights. Its the dimmer input.

 

another ?, since my GEM is diff from the one in John's truck, I started hunting for a GY/BK wire and found one on the bottom of my GEM is this the right one to tap into?

 

Thats the one i tapped. Im not really sure if it is the right one. My OHC doesn't update very fast regardless of speed.