Rep Power: 0

I have a 2002 Civic sedan and the brake lights do not come on. There is a high mount brake light on the car and it is working. The wire colors are green/yel for the passenger side lamp, green/red for the driver side lamp, and white/blk for the high mount lamp. The wiring harness runs from the trunk up the passenger side. Behind the back seat is a large wiring connector where I can test for voltage. When the brake pedal is depressed I find voltage at the white/blk wire for the high mount lamp only. I can apply 12V to each wire green/yel, green/red, white/blk and make each lamp light up individually. I reconnected the connector and headed for under the dash. I can pull the corresponding wiring connector from the underdash fuse/relay box and again apply voltage to the individual wires and make each lamp light up. I dont believe I am getting voltage out of the underdash fuse/relay box. The wiring diagram I have from a Chilton manual shows this lighting circuit to be wired with only the white/blk wire. Does anyone know if there is a relay that I am missing? Anyone have any ideas? If anyone has a wiring diagram from a service manual that you are willing to share that would be great.

 
Rep Power: 518

C601, 14 terminal harness connection, about even with the right rear door striker.
Brake light is white/black wire.
Single wire goes from the MICU (fusebox) to the rear.
The splice for the 2 outer brakelight bulbs is past this C601 connector, in the trunk, most likely somewhere near the branchout for the trunklid wires.
Quick and dirty fix: Run a new wire from the working center light (wht/blk wire) to the 2 outer lights (same colors). Simple jump around the (likely broken) splice.

 
Rep Power: 0

Thats what I don't understand. My wiring diagram showes one wire white/Blk but when I look at each lamp connector the colors are as I stated in my orignal post and these wires clearly go back to this connector by the passenger rear door as three individual wires and all the back to the fuse/relay box connector as three individual wires.....

 
Rep Power: 518

Coupe and sedan are different......Stand by


Q&D is still the fastest answer though.

 
Rep Power: 518

Too many different versions covered by the same diagrams here....

Sedan, C601, terminal 7, wht/blk, looks like it carries only the center light.....

I don't see where there are 3 separate wires for the 3 brake lights anywhere except in/on/about the trunk area harness (could have 3 wires attached to the same harness connector terminal?).

If I read this right: You say you have a spot where 3 separate brake light wires are exposed and you can manually operate all 3 brake lights? Just bridge all 3 wires together and be done with it.

 
Rep Power: 518

I see a single wire from P8 in the fusebox to C601. I haven't found 3 separate brake light wires to the rear yet.

EDIT: Crap, yet another diagram showing splices in the body harness betweeen P8 and C601. Damn.

Almost need the car in front of me to ID anything different.


IS this a USA car?
I don't have diagrams for other markets, only USA.

EDIT #2: Bridge the 3 wires together.

 
Rep Power: 186

Brake diagram from U.S. service manual for sedan.