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Fiero1234
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JAN 21, 03:24 PM
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Hello, I have noticed that the lights do not come on when I put the gear in reverse. I will start by checking the bulbs, but I do not know where the reversing sensor is located, in case it is the culprit, there is a photo of the sensor, thanks
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claude dalpe
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JAN 21, 03:35 PM
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What years is your fiero and automatic or 5 speeds. There is some difference
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Dennis LaGrua
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JAN 21, 05:42 PM
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It is called the back up light switch. On the stick (manual) that switch is attached to the shifter in the console. On the automatic the switch is on the transmission under the shift lever. The problem could also be a blown fuse, so check that as well.
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Xenoblast
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JAN 21, 06:19 PM
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| quote | Originally posted by Dennis LaGrua:
It is called the back up light switch. On the stick (manual) that switch is attached to the shifter in the console. |
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on the 5 speed getrag used on the v6s, it is on the transmission.
https://reddevilriver.com/Related_Products.html[This message has been edited by Xenoblast (edited 01-21-2022).]
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Dennis LaGrua
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JAN 21, 08:02 PM
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Yes I should have made that clearer 4 vs 5 speed.
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" THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Spintech/Hedman Exhaust, P-log Manifold, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, Champion Radiator, S10 Brake Booster, HP Tuners VCM Suite.
"THE COLUSSUS"
87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H
" ON THE LOOSE WITHOUT THE JUICE "
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Fiero1234
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JAN 22, 02:31 AM
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ehy if I'm sorry it's v6 5 speed ok I'll look at what you told me fuses I'll look they're fine ok thanks
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fierofool
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JAN 22, 10:24 AM
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You can test the circuit by unplugging the connector and inserting a jumper into the harness with the ignition on. The lights should illuminate. If they do illuminate, remove the switch, attach the harness and use your finger to depress the ball on the bottom of the switch. If the lights don't illuminate, your issue is a bad switch. If they do illuminate, the issue is inside the transmission, but that can be remedied. With the switch removed and using a grinding tool like a Dremel, remove metal from the surface where the gasket sits on the switch. You can get an idea of how much needs to be removed by reinstalling the switch without the gasket before you start grinding. One of our guys did that when a new switch didn't fix it.
This newsetter has an article detailing the process of grinding the switch.
http://gafieroclub.org/pics...sletters/Feb2021.pdf
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Fiero1234
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JAN 22, 04:53 PM
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ok thanks tomorrow I will try what you tell me and clear up any doubts thanks
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fierosound
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JAN 26, 09:50 PM
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| quote | Originally posted by fierofool:
You can test the circuit by unplugging the connector and inserting a jumper into the harness with the ignition on. The lights should illuminate. |
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If they don't - the bulbs are bad. 
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