2007 Yaris blinkers don't work HELP

[jwoehrle]

Here it goes.. I already know I did something extremely dumb however I know being completly honest may help diagnose this easier. I was installing new aftermarket tailight assemblies on my 2007 yaris liftback.. stupid me was in a hurry and I wasn't paying attention..did it while the engine was running.. now heres the problem. blower does not work at any fan speed. also the light that indicates rear defroster is on, is constantly lit now. if i put the blower in any speed other than off, or OR push the button to power on the rear defroster, then my signals wont work

[CTScott]

Originally Posted by jwoehrle

Here it goes.. I already know I did something extremely dumb however I know being completly honest may help diagnose this easier. I was installing new aftermarket tailight assemblies on my 2007 yaris liftback.. stupid me was in a hurry and I wasn't paying attention..did it while the engine was running.. now heres the problem. blower does not work at any fan speed. also the light that indicates rear defroster is on, is constantly lit now. if i put the blower in any speed other than off, or OR push the button to power on the rear defroster, then my signals wont work

It sounds like you crossed a wire for the tail light with something else. The tail light circuit feeds many other illumination related items (including the defroster light). Can you snap some pictures of how you wired the aftermarket tails? (I assume they were not plug and play, but rather the type where you had to cut and splice)

[jwoehrle]

no, they were plug and play. I also had a module spliced in for trailer lights...thought maybe it went bad so i disconnected but the crimp down connectors are still in place. maybe causing issue? also, i reconnected the original factory assemblies and problem still exists

[CTScott]

Originally Posted by jwoehrle

no, they were plug and play. I also had a module spliced in for trailer lights...thought maybe it went bad so i disconnected but the crimp down connectors are still in place. maybe causing issue? also, i reconnected the original factory assemblies and problem still exists

OK. Check the trailer module crimps. You may have two with an exposed piece of wire touching.

[jwoehrle]

...just checked...doesnt seem to be..is there a possibility this is a relay/fuse issue? also...i've never been a fan of those crimp connectors..do u know what color the ground wire would be on the harness that plugs into tghe rear tailights? i may remove connector and try to splice it back with a tube type connector

[CTScott]

Originally Posted by jwoehrle

...just checked...doesnt seem to be..is there a possibility this is a relay/fuse issue? also...i've never been a fan of those crimp connectors..do u know what color the ground wire would be on the harness that plugs into tghe rear tailights? i may remove connector and try to splice it back with a tube type connector

With the behavior that you described above, it sounds more like two circuits are bridged than like a relay or fuse issue. Ground wires are white wires with a black stripe.

For fuses that could potentially be involved, the 10A GAUGE fuse feeds the coil side of the blower and the coil side of the rear defogger. The 10A Tail fuse feeds the tail light bubs and all of the illumination circuits.

[jwoehrle]

the module for trailer lights had its own ground wire that attatched directly to the car. in other words it didnt tie into the tailight wiring harness like the others so i'm guessing the white/black ground is undisturbed. im thinking of removing all the crimp down connectors, cutting the wires, and then splicing them back together. if that doesnt work i'll start checking fuses and/or relays i guess...not sure what else....