BCM Pinout/Diagram

06LibertySSE · **Posted:** Fri Dec 01, 2006 12:40 pm

I am looking for pin 19 of connector C1 on the BCM!?! Anyone know which one this is? What color the wires are?
Thanks!

billforde · **Posted:** Fri Dec 01, 2006 4:40 pm

I have the service manual for the 2004. Doesnt look like 19 is used in the 2004.

CAV CIRCUIT FUNCTION
1 Z103 16BK/OR GROUND
2 V22 20BR/YL REAR WIPER INTERMITTENT DRIVER
3 G150 20TN/DB INSTRUMENT CLUSTER WAKE UP SIGNAL
4 G75 20TN LEFT FRONT DOOR AJAR SWITCH SENSE
5 G74 20TN/RD RIGHT FRONT DOOR AJAR SWITCH SENSE
6 G70 20BR/TN (PREMIUM) HOOD AJAR SWITCH SENSE
7 G78 20TN/BK TAILGATE AJAR SWITCH SENSE
8 G26 20LB KEY-IN IGNITION SWITCH SENSE
9 G80 20YL/WT FLIP-UP GLASS AJAR SWITCH SENSE
10 M3 20PK/DB REAR COURTESY LAMP CONTROL
11 V10 18BR WASHER PUMP DRIVER
12 L91 20DB/PK HAZARD LAMP CONTROL
13 V21 20DB/RD REAR WIPER ON DRIVER
14 Z231 16BK/WT GROUND
15 D25 18VT/YL PCI BUS
15 D25 18YL/VT/WT (PREMIUM) PCI BUS
16 - -
17 P101 20OR/PK FLIP-UP GLASS RELEASE SWITCH SENSE
18 - -
19 - -
20 B22 18LG/YL VEHICLE SPEED SIGNAL
21 G69 20BK/OR VTSS INDICATOR DRIVER
22 G76 20TN/YL RIGHT REAR DOOR AJAR SWITCH SENSE
23 C79 20VT/BK REAR WINDOW DEFOGGER CONTROL
24 C19 18BR A/C ON/OFF CONTROL
25 Z3 16BK/OR GROUND
26 P100 18OR/BR FLIP-UP GLASS RELEASE MOTOR DRIVER

06LibertySSE · **Posted:** Fri Dec 01, 2006 5:13 pm

Great thats a start! By chance do you know which connector on the BCM is where all those wires are located? How can I identify it? Where do the pins start? Top? Bottom? So I know where to count and see where Pin 19 is?

Thanks so much!

billforde · **Posted:** Sat Dec 02, 2006 10:33 am

Here you go.
Connector
Location

06LibertySSE · **Posted:** Sat Dec 02, 2006 1:31 pm

Great thanks for the info! 1 last question... Where is PIN # 8 on the Lightbar Switch itself? I only count 7 metal prongs on mine and I want to know which one could possibly be PIN # 8? Im in the garage now trying to get this to work so any quick responses would be much much appreciated!!!

06LibertySSE · **Posted:** Sat Dec 02, 2006 1:45 pm

Great thanks for the info! 1 last question... Where is PIN # 8 on the Lightbar Switch itself? I only count 7 metal prongs on mine and I want to know which one could possibly be PIN # 8? Im in the garage now trying to get this to work so any quick responses would be much much appreciated!!!

billforde · **Posted:** Sat Dec 02, 2006 2:53 pm

I dont see a pin 8 either.
Lightbar switch

unixxx · **Posted:** Mon Dec 04, 2006 3:50 pm

billforde, what year is that pinout? You can see pin 8 in the lower right hand corner but for some reason they don't include a decription in the table. Pin 8 is in the table in my 05 manual as WT/LG.

billforde · **Posted:** Mon Dec 04, 2006 4:16 pm

Its for the 2004.

unixxx · **Posted:** Tue Dec 05, 2006 12:01 am

Does anyone know if 04's have a lightbar indicator in the instrument cluster?

bmg9b · **Posted:** Tue Dec 05, 2006 12:46 am

I thought so... I could be wrong.

While I'm here, and you guys are digging around in the dashboard... is it possible to make the stock light bar switch and wiring work a pair of aux. lights? I've got the stock light bar and want to get rid of it and use the switch in the dash to work some lights on my bull bar when I put it on. Thanks!

billforde · **Posted:** Tue Dec 05, 2006 12:47 am

unixxx wrote:

Does anyone know if 04's have a lightbar indicator in the instrument cluster?

According to the Service Manual it does.

The EMIC
includes provisions for the following indicators (Fig.
3):
² Airbag Indicator (with Airbag System only)
² Antilock Brake System (ABS) Indicator
(with ABS only)
² Brake Indicator
² Charging Indicator
² Coolant Low Indicator (with Diesel Engine
only)
² Cruise Indicator (with Speed Control only)
² Four-Wheel Drive Full Time Indicator (with
Selec-Trac Transfer Case only)
² Four-Wheel Drive Low Mode Indicator
(with Four-Wheel Drive only)
² Four-Wheel Drive Part Time Indicator
(with Four-Wheel Drive only)
² Front Fog Lamp Indicator (with Front Fog
Lamps only)
² High Beam Indicator
² Light Bar Lamp Indicator (with Light Bar
only)
² Low Fuel Indicator
² Low Oil Pressure Indicator
² Malfunction Indicator Lamp (MIL)
KJ INSTRUMENT CLUSTER 8J - 3
INSTRUMENT CLUSTER (Continued)
² Overdrive-Off Indicator (with Automatic
Transmission only)
² Rear Fog Lamp Indicator (with Rear Fog
Lamps only)
² Seatbelt Indicator
² Security Indicator (with Vehicle Theft
Security System only)
² Sentry Key Immobilizer System (SKIS)
Indicator (with SKIS only)
² Tire Pressure Monitor Indicator
² Transmission Overtemp Indicator (with
Automatic Transmission only)
² Turn Signal (Right and Left) Indicators
² Wait-To-Start Indicator (with Diesel Engine
only)
² Water-In-Fuel Indicator (with Diesel Engine
only

06LibertySSE · **Posted:** Tue Dec 05, 2006 9:31 am

Yes, 04's do have the lightbar light on the dash... If you wanted to add a pair of aux lights and use the dash indicator, it is very easy to do... I love having the light come on now when I turn my lightbar on. If you guys want to know exactly how to make the light on the dash illuminate, please let me know and I will do a little write up for you. Thanks to everyone who provided answers to my questions and informed me where to start. My local Jeep dealer was so cooperative they gave me BCM/Pinout diagrams right from their service manuals on the spot! Anyone who has a lightbar and the light doesnt illuminate on the dash, let me know!!! Well get it working!!

Jeepjeepster · **Posted:** Tue Dec 05, 2006 1:29 pm

Yes! I would love to know..

What kind of switches do you all use for your lights? If I drill a hole in my dash. I want it to look nice and get a good looking switch. Right now Im just using the switch that came with the hellas.. Its a green rocker switch that lights up..

bmg9b · **Posted:** Wed Dec 06, 2006 12:51 pm

06LibertySSE wrote:

Yes, 04's do have the lightbar light on the dash... If you wanted to add a pair of aux lights and use the dash indicator, it is very easy to do... I love having the light come on now when I turn my lightbar on. If you guys want to know exactly how to make the light on the dash illuminate, please let me know and I will do a little write up for you. Thanks to everyone who provided answers to my questions and informed me where to start. My local Jeep dealer was so cooperative they gave me BCM/Pinout diagrams right from their service manuals on the spot! Anyone who has a lightbar and the light doesnt illuminate on the dash, let me know!!! Well get it working!!

I'd like to know as well, have a friend who's getting a light bar and I'm going to help him with the install.

FreedomKJ · **Posted:** Fri Mar 23, 2007 9:11 pm

I hate to dredge up old posts, but 06LibertySSE, whould you mind doing that write up for us? Thanks!

Cacher123 · **Posted:** Sat Mar 24, 2007 2:31 am

While you're at it, can you tell me how to get the little European reverse light indicator to work? There is an unused on (on the US spec models) that they use in the Euro models which light when the back up lights are turned on (not the normal reverse lights like we have).

² Rear Fog Lamp Indicator (with Rear Fog Lamps only)

I'd like to wire it to my aux reverse lights as sometimes I leave them on and blind people behind me.

infernicus · **Posted:** Thu Feb 18, 2010 3:18 pm

I know I am resurrecting this from the dead, dead, dead.
But here is a link on JeepKJcountry on how to turn on the overhead light dashlight..
And if anyone still reads this, I would like to know about the 'fogs' and 'rear fogs' that were previously mentioned..
Also I have a 2007, so it is probably different than the 2004 that was posted above.

Also where are those descriptions from "from figure 3" .. from the BCM? Probably not because there are a couple extra notations.
Thanks.

BCM Pinout/Diagram

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