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Discussion Starter #1
Hey guys, wondering if anyone has the schematic for the BCM? I installed an alarm on my 06 4x4 S and for some reason the tail light/dashboard fuse keeps popping. I think it's related to wiring the override transponder into the BCM - I used the diagram they gave me from the company, but I don't think it's correct. I specifically need to know the CAN low, CAN high, and Security Light colors and their pin locations.

Thanks for your help,

Matthew
 

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Discussion Starter #3
Thanks for the quick reply - I did check a few sites - I have the diagram that is from the company that makes the transponder - they list the CAN low as pink (pin 21) the CAN high as blue (pin 22) and the security light as green orange (pin 38). I don't think that is right, though, because when I used their wiring diagram to try to locate the factory alarm override their pins were totally wrong (?!?) - now as I said the tail light fuse keeps popping. I have to go to work tonight, but I'll be taking all the alarm wiring off tomorrow and seeing if it still pops without anything attached.....grrr.

Matthew
 

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matatk said:
Hey guys, wondering if anyone has the schematic for the BCM? I installed an alarm on my 06 4x4 S and for some reason the tail light/dashboard fuse keeps popping. I think it's related to wiring the override transponder into the BCM - I used the diagram they gave me from the company, but I don't think it's correct. I specifically need to know the CAN low, CAN high, and Security Light colors and their pin locations.

Thanks for your help,

Matthew
My guess would be that you have the parking lights hooked with the wrong polarity. Which way did you hook it up? - Parking lights or + Parking lights? I doesn't have anything to do with a transponder key. You shouldn't need to worry about anything with CAN because there isn't any alarm that communicates with CAN. CAN is a DIGITAL signal not an ANALOG one.

Here is a wiring diagram



DIRECTWIREâ„¢ WIRING INFORMATION - NISSAN / XTERRA / 2006 / Security


[PRINT THIS PAGE]


12volts green (40A) + ignition harness
Starter gray + ignition harness
Ignition white/green + ignition harness
Power Lock lt. green to purple - driver kick or BCM, pin 45
Notes: The BCM (Body Control Module) is to the right of the steering column.
Power Unlock white to lt. green - driver kick or BCM, pin 46
Notes: The BCM (Body Control Module) is to the right of the steering column.
Lock Motor purple 5wi driver kick or BCM, pin 65
Notes: The BCM (Body Control Module) is to the right of the steering column.
Unlock Motor gray 5wi driver kick or BCM, pin 59
Notes: The BCM (Body Control Module) is to the right of the steering column.
Disarm Defeat blue 5wi passenger kick or BCM, pin 66
Notes: The BCM (Body Control Module) is to the right of the steering column.
Parking Lights+ gray + driver kick, harness to rear
Parking Lights- N/A
Hazards green - hazard switch or BCM, pin 29
Notes: The BCM (Body Control Module) is to the right of the steering column.
Turn Signal(L) lt. green + driver kick or BCM, pin 60
Notes: The BCM (Body Control Module) is to the right of the steering column.
Turn Signal(R) green + passenger kick or BCM, pin 61
Notes: The BCM (Body Control Module) is to the right of the steering column.
Door Trigger see notes - BCM
Notes: The LF door is gray in pin 47. The RF door is lt. green in pin 12. The LR door is pink in pin 48. The RR door is blue in pin 13. Use all four wires and diode isolate each.

The BCM (Body Control Module) is to the right of the steering column.

On vehicles without power door locks, the driver door trigger is blue in the driver kick panel. The passenger(s) door trigger is red in the passenger kick panel.
Dome Supervision brown - driver A pillar or BCM, pin 63
Notes: The BCM (Body Control Module) is to the right of the steering column.
Trunk/Hatch Pin yellow - driver kick or BCM, pin 43
Notes: The BCM (Body Control Module) is to the right of the steering column.
Hood Pin N/A
Trunk/Hatch Release N/A
Power Sliding Door N/A
Factory Alarm Arm lt. blue - driver kick or BCM, pin 8
Notes: Meter this wire while turning the key in the driver door key cylinder. This wire will also lock the doors.

The BCM (Body Control Module) is to the right of the steering column.
Factory Alarm Disarm red/white to gray - driver kick or BCM, pin 7
Notes: Meter this wire while turning the key in the driver door key cylinder. This wire will also unlock the doors with a double pulse.

The BCM (Body Control Module) is to the right of the steering column.
Disarm No Unlock
Tachometer NOT white/green ac any fuel injector
Horn Trigger brown - horn switch
Memory Seat 1 N/A
Memory Seat 2 N/A
Memory Seat 3 N/A
Interface Module: Category:
Immobilizer Bypass Required:
Yes Type:
Transponder
Part #: 556UW
Alternate Part1 #: DesignTech 20402
Alternate Part2 #: DesignTech 29402
Notes: Standard on the Off Road, SE, and S models. Optional on the X models.
Smart Starter Kill Relays: Not Available




This wiring information is being provided free of charge on an "as is" basis, without any representation or warranty. It is your responsibility to verify any circuit before interfacing with it using a digital multimeter.
Directed Electronics assumes no responsibility with regards to the accuracy or currency of this information. Proper installation in every case is and remains the responsibility of the installer. DEI assumes no liability or responsibility resulting from improper installation, even in reliance upon this information.



-Cowboy Out!
 

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Discussion Starter #7
Cowboy -

Thanks for the tip about the CAN, but it's not the alarm that's hooked up to it, it's the key transponder for the remote start. I have the parking lights hooked up correctly, I knew the color and used a test light to verify it. I also disconnected the parking light function to see if that was blowing the fuse and it was still doing it. I figure it has to be one of the three wires hooked up to the BCM for the transponder or I somehow grounded/shorted my taillight wire while doing something else.

Just for FYI it's a Code Alarm CA-670 with a PKN3 CAN BUS data immobilizer override.

Thanks again, I'm gonna go give it a go - I'll keep you posted.

Matthew
 

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BCM

matatk said:
Cowboy -

Thanks for the tip about the CAN, but it's not the alarm that's hooked up to it, it's the key transponder for the remote start. I have the parking lights hooked up correctly, I knew the color and used a test light to verify it. I also disconnected the parking light function to see if that was blowing the fuse and it was still doing it. I figure it has to be one of the three wires hooked up to the BCM for the transponder or I somehow grounded/shorted my taillight wire while doing something else.

Just for FYI it's a Code Alarm CA-670 with a PKN3 CAN BUS data immobilizer override.

Thanks again, I'm gonna go give it a go - I'll keep you posted.

Matthew
I guess i've never put a CAN module in an Xterra when doing remote starts. I have done at least 10 Xterras and I've only used the 556U directed interface and never had any problems. Another thing always use a DVOM (digital volt ohm meter) when testing BCM wires or you will blow up your BCM using a test light.

-Cowboy
 

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Discussion Starter #9
Regarding the test light, I used a low voltage one specifically for the newer cars (I guess because of airbags, etc?) - it's a red and green led and apparently draws very little current.

As far as the short - still don't have it. I just removed the entire alarm brain and most wires and it's still blowing the fuse. Tried to take out the lightbulbs for the taillight to see if that would help (ie short in wiring) and still blew. I have a bad feeling that I f*d something up :pale: I'm ready to cry....lol.

Can you tell me more specifically what the CAN system does? I don't know what else to do so I'm about to call the dealer and bring it in...

Any last resort?

Matthew
 
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