 No brake warning light solid or flashing in 1973--help please |
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| 914xr75 |
 Jun 10 2025, 05:55 PM
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Member  Group: Members Posts: 199 Joined: 24-March 18 From: Whittier, CA Member No.: 21,996 Region Association: Southern California  |
It's me again. A couple weeks ago the World helped me with proper bleeding of my daughter Lilly's car. Now I am trying to get the brake warning light to work before the WCR. It has never worked in the past nine years, flashing or solid.
I am not good with electrical issues. I know how to check my battery with a freebie Harbor Freight dmm, but that's about it. So here are the details.....New 17mm ATE master. Brown with yellow stripe wire connected to the new master. I have pushed the reset button. Brakes are properly bled and there are no leaks. The turn signals work properly. The flasher works. The seat belt warning light has never worked for 9 years. i checked that the bulb is good for the warning light. All the terminals at the bulb base are connected. I think there are 3 spade connections. I didn't see a fuse listed for the switch. Someone in a previous post mentioned a diode near the warning light. I'm hoping there is an easy fix for this problem or I will have to take it to an auto electrician. The warning light doesn't work for the e-brake as wall. Thanks in advance for any assistance. Sean |
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| 914xr75 |
Jun 10 2025, 08:17 PM
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Member Group: Members Posts: 199 Joined: 24-March 18 From: Whittier, CA Member No.: 21,996 Region Association: Southern California |
It's the brake warning light. Sorry about that. MC is new. No leaks. Would a bad e-brake switch completely stop the warning light from working? The warning light does not go on at all.
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| Spoke |
Jun 13 2025, 04:25 AM
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#3
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Jerry Group: Members Posts: 7,172 Joined: 29-October 04 From: Allentown, PA Member No.: 3,031 Region Association: None 
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QUOTE(914xr75 @ Jun 10 2025, 10:17 PM)  It's the brake warning light. Sorry about that. MC is new. No leaks. Would a bad e-brake switch completely stop the warning light from working? The warning light does not go on at all. The warning switch on the MC and the ebrake switch are in parallel. If either one grounds out the warning light will come on. The MC warning switch is difficult to test. Not sure if there's a way to make the warning switch close w/o screwing with the brake system to cause a fault. The reset button only resets the switch after a fault. A simple way to test the warning light is to short the 2 spades of the warning switch together and see if the light comes on. Does your MC switch have 2 spades or 1 spade? For the ebrake switch, remove the switch and short the wire to the chassis. This should cause the warning light to light up (car is running). If it does light up, then your switch needs work. |
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Posts in this topic
914xr75 No brake warning light solid or flashing in 1973--help please Jun 10 2025, 05:55 PM
infraredcalvin Do you have a brake light switch at the base of yo... Jun 10 2025, 06:41 PM cgnj Brake lights or brake warning light? Two different... Jun 10 2025, 07:16 PM dtmehall :agree: Jun 10 2025, 07:17 PM jim_hoyland I just went through the brake warning light issue ... Jun 11 2025, 06:02 AM 914xr75 That sounds like good information. I’ll give tha... Jun 11 2025, 01:00 PM
jim_hoyland
That sounds like good information. I’ll give th... Jun 11 2025, 06:48 PM dtmehall replace it. the part is cheap, and it isn't ve... Jun 11 2025, 07:01 PM Puebloswatcop From the fuse block...Fuse 9 feeds power to the fa... Jun 11 2025, 07:16 PM cgnj 914xr75 If your brake warning light is @12'ocl... Jun 12 2025, 04:18 PM jim_hoyland When I removed the eBrake switch there’s was a f... Jun 13 2025, 07:25 PM dtmehall where did that 'gunk' come from. my 73 was... Jun 13 2025, 08:36 PM Spoke
where did that 'gunk' come from. my 73 wa... Jun 14 2025, 06:47 AM 914xr75 Thanks for all the info. I'm getting up early ... Jun 13 2025, 10:35 PM 914xr75 @jim hoyland [b]@[url=http://www.914world.com/bb... Jun 15 2025, 06:22 PM 914xr75 RE: No brake warning light solid or flashing in 1973--help please Jun 15 2025, 06:24 PM jim_hoyland Oops Jun 15 2025, 06:42 PM jim_hoyland “Put a 9volt battery to the bulb and it is good.... Jun 15 2025, 06:45 PM 914xr75 [b]@[url=http://www.914world.com/bbs2/index.php?s... Jun 15 2025, 07:10 PM |
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