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Brake Lights Not Working |
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66Mike
AMC Fan Joined: Jun/15/2018 Location: Wisconsin Status: Offline Points: 12 |
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Posted: Jun/15/2018 at 12:44pm |
I have a 66 AMC Ambassador 990 automatic with 327 engine.
All my lights work except for brake lights. I replaced the switch on brake pedal, but brake lights still don't work. Any suggestions on how to find the problem and then fix? thanks |
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sidewinder
Moderator Group Joined: Oct/07/2007 Location: Niagara Falls, Status: Offline Points: 6665 |
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One word.....GROUND ! Chuck Page
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Chuck Page ,AKA Sidewinder
1968 "BLACK CHERRY" Javelin Previous owner of 2013 Heritage Cup winner 1970 BBO AMX |
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tufcj
Supporter of TheAMCForum Supporter of TheAMCForum Joined: Jul/10/2007 Location: Watkins, CO Status: Offline Points: 4066 |
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Do the directional signals work? The brake lights are wired through the directional signal switch in the column. If the rear directional signals work, then the wiring to the bulbs is intact. It could still be the brake switch, or the wire is broken somewhere between the brake switch and directional switch. Bob tufcj
Edited by tufcj - Jun/15/2018 at 1:50pm |
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69 AMX
74 Javelin AMX 67 Rogue If you need a tool and don't buy it... you'll eventually pay for it... and not have it. Henry Ford |
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66Mike
AMC Fan Joined: Jun/15/2018 Location: Wisconsin Status: Offline Points: 12 |
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can you add some more details?
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66Mike
AMC Fan Joined: Jun/15/2018 Location: Wisconsin Status: Offline Points: 12 |
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directionals work, back up lights work, running lights work, headlights work
Brake lights don't |
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LakesideRamblin
AMC Addicted Joined: Dec/21/2015 Location: So. California Status: Offline Points: 2683 |
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Mine did not work recently. I needed to replace the fuse. I also replaced my brake switch, they're cheap.
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LakesideRamblin
69 Rambler 360 73 Javelin 360 "If you could kick the person in the pants responsible for most of your trouble, you wouldn't sit for a month." T. Roosevelt |
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66Mike
AMC Fan Joined: Jun/15/2018 Location: Wisconsin Status: Offline Points: 12 |
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was there a separate fuse for the brake lights?
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george w
Supporter of TheAMCForum Joined: Jan/27/2013 Location: New Jersey Status: Offline Points: 2899 |
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Probably. I know in 1967 there's a STOP fuse, 9A that provides direct power to one side of the stop light switch. Red wire w/ tracer 12 volts input to switch. Green is the output side.
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Long time AMC fan. Ambassador 343, AMX 390, Hornet 360, Spirit 304 and Javelin 390. All but javelin bought new.
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farna
Supporter of TheAMCForum Moderator Lost Dealership Project Joined: Jul/08/2007 Location: South Carolina Status: Offline Points: 19611 |
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See if your rear turn signals work. If they do, the problem isn't the turn signal switch. If they don't, it could be the turn signal switch in the column. The brakes and turn signals use the same wiring. Turn signals and brake lights use the same fuse. There should be a fuse labeled "STOP TURN" on the fuse panel. It's hard to get to under the driver's side of the dash, but you can twist around in the floor and see it with a flashlight...
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Frank Swygert
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White70JavelinSST
Supporter of TheAMCForum Joined: Aug/08/2012 Location: Minnesota Status: Offline Points: 4867 |
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Pull the wire connector off the brake light switch. Either jumper across the wires in the connector or test it with a VOM. Volt Ohm Amperage Meter). If there is voltage across this and the brake lights go on, your switch is still bad. Check for open switch/closed switch on the brake light switch by connecting the VOM (use the resistance meter [ohms], in the lowest range) across the wire connector pins. When the switch is open the resistance should verify there is no continuity. With the switch closed, the resistance should verify continuity by showing a very low resistance reading on the meter. Check that the pins are actually there in both the connector and switch. Check that each pin contacts its associated connector. Let us know what you find
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70 Javelin SST, second owner, purchased 1972
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