Installed backup cam, now have no reverse lights

[BoostedRide]

Installed an Auto Vox backup cam in my Speed6. 1st try, reverse lights lit up as they should, but cam not so much. Since then, no reverse lights. I checked fuses & did not find any blown. I have LEDs for bulbs and everything else is fine. So what happened here?

UPDATE 12/24: Replaced the switch & still have no lights. WTF?!

[SSinstaller]

Disconnect the camera, and see if your lights work again.

Yes=consider yourself lucky, and pay an audio shop to install your camera correctly.

No= Check the 15a fuse labelled meter. If its not blown, you may have damaged the BCM. Take your car to the dealer and pay them to fix it.. Then go pay a shop to install your camera.

I honestly dont understand how you mess up this install? Two wires to connect, both of them right there at the bulb. The factory ground wire is even black, just like the camera ground..

[BoostedRide]

Originally Posted by SSinstaller Disconnect the camera, and see if your lights work again. Yes=consider yourself lucky, and pay an audio shop to install your camera correctly. No= Check the 15a fuse labelled meter. If its not blown, you may have damaged the BCM. Take your car to the dealer and pay them to fix it.. Then go pay a shop to install your camera. I honestly dont understand how you mess up this install? Two wires to connect, both of them right there at the bulb. The factory ground wire is even black, just like the camera ground..

1dt thing I did was disconnect it & check all fuses. All fuses good. I honestly don't know how you think I screwed the install up. Installed correctly. Reverse lights worked per usual the 1st try then they have not since. I did not screw anything up.

[MSMS3]

Originally Posted by BoostedRide 1dt thing I did was disconnect it & check all fuses. All fuses good. I honestly don't know how you think I screwed the install up. Installed correctly. Reverse lights worked per usual the 1st try then they have not since. I did not screw anything up.

Well, how is it screwed up, then, if you did not do it?

Really not trying to be hard on you, but the only thing that changed was what you did. If there are no blown fuses, then remove everything. Take it back to original condition. Then see if the lights come back on. Do a hard reset, by removing a battery cable and depressing the brake pedal to discharge any stored energy. Wait a full minute and reconnect the battery.

This should restore it to original condition, if you did remove everything - everything.

[BoostedRide]

Originally Posted by MSMS3 Well, how is it screwed up, then, if you did not do it? Really not trying to be hard on you, but the only thing that changed was what you did. If there are no blown fuses, then remove everything. Take it back to original condition. Then see if the lights come back on. Do a hard reset, by removing a battery cable and depressing the brake pedal to discharge any stored energy. Wait a full minute and reconnect the battery. This should restore it to original condition, if you did remove everything - everything.

Did all that before I posted anything. Still no reverse lights. I did nothing wrong. Obviously, the car did not like me installing the cam for whatever reason. Shit happens. Now I'm trying to figure out what happened...

[djern]

check your bulbs...and 2nd who needs reverse lights..when yo car starts backing up folks will get out the way..hell..my daily the reverse lights never worked..prolly just blown but im too lazy to replace em..why..cuz when i start backing up ppl get out the way lol

[BoostedRide]

Originally Posted by djern check your bulbs...and 2nd who needs reverse lights..when yo car starts backing up folks will get out the way..hell..my daily the reverse lights never worked..prolly just blown but im too lazy to replace em..why..cuz when i start backing up ppl get out the way lol

C'mon I checked the bulbs long ago. Also, cars will not pass inspection w/no lights!

[MSMS3]

Originally Posted by BoostedRide Did all that before I posted anything. Still no reverse lights. I did nothing wrong. Obviously, the car did not like me installing the cam for whatever reason. Shit happens. Now I'm trying to figure out what happened...

When you do figure it out, you will realize it was you. Own it. Learn from it.

What color wire did you tap into?

"We have met the enemy, and he is us." Pogo

[BoostedRide]

Originally Posted by MSMS3 When you do figure it out, you will realize it was you. Own it. Learn from it. What color wire did you tap into? "We have met the enemy, and he is us." Pogo

Red/yellow. Good day.

[GroceryGtr]

question: do your LED tail lights have built in or external resistors to offset the less draw? Next question did you tap in before or after said resistors?

[BoostedRide]

Originally Posted by GroceryGtr question: do your LED tail lights have built in or external resistors to offset the less draw? Next question did you tap in before or after said resistors?

They are Spyder LED tails. I'm going to guess no since I had to add resistors when I installed LED turn signal bulbs. However, I never had a problem w/the LED reverse bulbs and never needed to add resistors there. I also did put standard bulbs back in to verify it was not the bulbs & it confirmed that the issue is not the bulb.

Everything in the car, including all other lights, function perfectly fine. The only wiring I touched was the small section of the red/yellow reverse wire that I tapped into. I did cut that portion out & reconnect the wire to make sure that wasn't it & I still have no reverse lights. Also, keep in mind that, once the reverse lights stopped working, I disconnected the backup cam & have not bothered to reinstall that since. Need to fix the reverse light issue 1st.

[5doorsoffury]

A 50w bulb will draw about 4 amps at 12v. A back up cam will draw .1-.2 amps. That wont blow anything. A led tail light has built in current limiting resistors. The add on resistor is only to make the car think the bulb is not blown when it has the bulb blown light on the dash or fast flashing notifications. What i think happened is he shorted the wire blowing the bcm or maby the bulb socket/wire has a bad connection from being fucked with/cut. What did the volt meter read when you checked the wire? You did check the wire first before tapping into it right? You did check your fuses right?

[BoostedRide]

Originally Posted by 5doorsoffury A 50w bulb will draw about 4 amps at 12v. A back up cam will draw .1-.2 amps. That wont blow anything. A led tail light has built in current limiting resistors. The add on resistor is only to make the car think the bulb is not blown when it has the bulb blown light on the dash or fast flashing notifications. What i think happened is he shorted the wire blowing the bcm or maby the bulb socket/wire has a bad connection from being fucked with/cut. What did the volt meter read when you checked the wire? You did check the wire first before tapping into it right? You did check your fuses right?

As previously stated, I checked all fuses & none blown. I also cut out the section of the red/yellow wire that I spliced into & reconnected it to rule that out. My meter gave no reading at the wire, but I get the proper reading at the fuse box.

[g00s3y]

Imagine the time/money/hassle that could be saved by just looking in your rear view mirror, or turning around when backing up...

If you NEED a backup camera to be able to park correctly, you probably need to learn how to actually drive first.

[Bingo]

Originally Posted by g00s3y Imagine the time/money/hassle that could be saved by just looking in your rear view mirror, or turning around when backing up... If you NEED a backup camera to be able to park correctly, you probably need to learn how to actually drive first.

Seriously?
Alright, I understand hating on unnecessary modifications that actually detract from the car or what it was made to do, but a backup camera? Ya I suppose in this case it has done more harm than good, but the OP is is attempting to correct the error, and there's nothing wrong with that. If you want to put visual mods on your car, then cool, more power to you. But imagine the time/money/hassle that could be saved by just being okay with how the car looked originally? I mean damn, if these cars are about what we NEED, I'm sure all of us would sell them and buy Camry's.

[5doorsoffury]

Originally Posted by BoostedRide As previously stated, I checked all fuses & none blown. I also cut out the section of the red/yellow wire that I spliced into & reconnected it to rule that out. My meter gave no reading at the wire, but I get the proper reading at the fuse box.

Ok fwiw i was a car installer for over 15 years so you have to understand me giveing you shit on a install that i would use to train a person that didnt know how to use a set of crimpers.

If it were me i would say to my self... . The reverse signal comes from the tranny and goes into the bcm... ill start at one end and work my way down.....

I will start at the light. Is there 12v yes/no. No= go to bcm is there 12v yes/no. Yes= break in wire, no =check fuse. Is fuse good yes/no. Yes= bcm fucked No =replace fuse. Idk start useing that meter and figure it out.

And when i check a wire i strip back the wire and poke the lead thru the middle.

[g00s3y]

Originally Posted by 5doorsoffury Ok fwiw i was a car installer for over 15 years so you have to understand me giveing you shit on a install that i would use to train a person that didnt know how to use a set of crimpers. If it were me i would say to my self... . The reverse signal comes from the tranny and goes into the bcm... ill start at one end and work my way down..... I will start at the light. Is there 12v yes/no. No= go to bcm is there 12v yes/no. Yes= break in wire, no =check fuse. Is fuse good yes/no. Yes= bcm fucked No =replace fuse. Idk start useing that meter and figure it out. And when i check a wire i strip back the wire and poke the lead thru the middle.

strip... poke the head...

Giggity

[BoostedRide]

Originally Posted by 5doorsoffury Ok fwiw i was a car installer for over 15 years so you have to understand me giveing you shit on a install that i would use to train a person that didnt know how to use a set of crimpers. If it were me i would say to my self... . The reverse signal comes from the tranny and goes into the bcm... ill start at one end and work my way down..... I will start at the light. Is there 12v yes/no. No= go to bcm is there 12v yes/no. Yes= break in wire, no =check fuse. Is fuse good yes/no. Yes= bcm fucked No =replace fuse. Idk start useing that meter and figure it out. And when i check a wire i strip back the wire and poke the lead thru the middle.

If the BCM were toast, wouldn't the car have other issues? Everything else is perfectly fine.

If the wire broke somewhere, that's one hell of a coincidence.

[5doorsoffury]

Originally Posted by g00s3y strip... poke the head... Giggity

Some times i cant find the hole and needed my coworker to put it in.... we used to have whight yellow wire lube that i would have to lube up the wire many times a day before yanking it thru a hole the same way i would lube up a cock i mean my cock....

[SSinstaller]

Originally Posted by BoostedRide If the BCM were toast, wouldn't the car have other issues? Everything else is perfectly fine. If the wire broke somewhere, that's one hell of a coincidence.

Most control system electronics are designed to be very fault tolerant.
One bad output or connection most likely wont take out the entire bcm, just the incorrect/damaged circuit..

Check at the bcm. If you have the input signal from the transmission, but no output to the lights, you have damaged your BCM. All the wiring info you need to diagnose this problem is in the link I gave you in your original camera post.

[BoostedRide]

Originally Posted by SSinstaller Most control system electronics are designed to be very fault tolerant. One bad output or connection most likely wont take out the entire bcm, just the incorrect/damaged circuit.. Check at the bcm. If you have the input signal from the transmission, but no output to the lights, you have damaged your BCM. All the wiring info you need to diagnose this problem is in the link I gave you in your original camera post.

Do you mean fuse #11 ? If so, I verified that t gets proper power at the box.

[SSinstaller]

Originally Posted by BoostedRide Do you mean fuse #11 ? If so, I verified that t gets proper power at the box.

No. You'll need to test the wiring at the BCM. It uses power from the meter fuse to power the trans switch, and the reverse lights.

Power moves like this:
Meter fuse>bcm>trans switch>bcm>reverse lights

You can test every component of the circuit at the BCM connectors. 15 minutes with a multimeter and you'll know exactly whats wrong.

[BoostedRide]

Where is the reverse switch? I can't find anything with a blue connector going into the trans.

[SSinstaller]

IIRC the connector at the trans is grey, not blue. I generally test from the bcm wiring, that way your testing the full circuit rather than just the switch.

The switch can be tested from pins 8b and 8p in connector F at the bcm.

[BoostedRide]

Originally Posted by SSinstaller IIRC the connector at the trans is grey, not blue. I generally test from the bcm wiring, that way your testing the full circuit rather than just the switch. The switch can be tested from pins 8b and 8p in connector F at the bcm.

With ign on (car not started) and in reverse, I get 12v at 8b & 0.6v at 8p at the BCM.

[5doorsoffury]

What did the wires meter not in reverse.
You also said you are checking the switch but did you check the output of the bcm to the reverse light itself?

[BoostedRide]

Originally Posted by 5doorsoffury What did the wires meter not in reverse. You also said you are checking the switch but did you check the output of the bcm to the reverse light itself?

I checked the fuse box at fuse #11 per what someone told me & that read 12v. I did not meter it when not in reverse. Also just checked pin 10 on plug R & got no reading.

[SSinstaller]

Voltage on 8b tells you the bcm output to the switch is fine. Pin 10 can't have any voltage because be bcm isn't getting a signal back from the reverse switch.

Next youll need to go to the reverse switch connector at the trans. Test for the voltage from the bcm on one pin(g/b wire). And then test for continuity across both the switch terminals when in reverse. If you dont have voltage you'll need to fix the damaged wire between the switch and pin 8b(unlikely). If you dont have continuity between the switch terminals in reverse you have a bad switch(more likely). If you do have continuity and voltage on g/b wire, you'll need to repair the damaged r/y wire between the switch and pin 8p.

[BoostedRide]

& whatever Rock Auto is selling as the reverse switch for the MS6 is not the right one . Only the connector is same as OE. The switch itself aint even close.
Looked online at pics of this OE part# too & they are all too short also wtf. Apparently I need to find another part#

[BoostedRide]

Someone one of the MS Facebook groups gave me the right part#, thankfully. It is
A610-17-640B

Hope that helps people in the future

[BoostedRide]

Replaced the switch & still have no lights. WTF?!

[SSinstaller]

You didnt test the switch before you replaced it?