Big red battery light, flashing |
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Big red battery light, flashing |
914itis |
Sep 1 2011, 03:37 PM
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#1
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Advanced Member Group: Members Posts: 2,892 Joined: 9-October 10 From: New York City Member No.: 12,256 Region Association: North East States |
The big red battery light on the dashboard is flashing. The battery keeps charge and the alternator recharges it. What could be wrong? where to start looking?
This is on my friend's 75 .18 |
eric9144 |
Sep 1 2011, 03:41 PM
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#2
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Advanced Member Group: Members Posts: 2,734 Joined: 30-March 11 From: San Diego, CA Member No.: 12,876 Region Association: Southern California |
Sounds like the brake warning light is attached to the wrong indicator... I don't remember the Generator light 'flashing' it is either on or off... (IMG:style_emoticons/default/idea.gif)
Someone correct me if I'm wrong... |
underthetire |
Sep 1 2011, 03:52 PM
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#3
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914 Guru Group: Members Posts: 5,062 Joined: 7-October 08 From: Brentwood Member No.: 9,623 Region Association: Northern California |
(IMG:style_emoticons/default/agree.gif)
Sounds like the brake light. Check you e brake handle. |
914itis |
Sep 1 2011, 04:00 PM
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#4
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Advanced Member Group: Members Posts: 2,892 Joined: 9-October 10 From: New York City Member No.: 12,256 Region Association: North East States |
Thanks,
I guest the "B" is for brake, not battery. |
underthetire |
Sep 1 2011, 04:01 PM
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#5
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914 Guru Group: Members Posts: 5,062 Joined: 7-October 08 From: Brentwood Member No.: 9,623 Region Association: Northern California |
Yup, and the small G is for the battery(generator) even though the cars have alternators (IMG:style_emoticons/default/confused24.gif)
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rick 918-S |
Sep 1 2011, 05:17 PM
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#6
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Hey nice rack! -Celette Group: Members Posts: 20,456 Joined: 30-December 02 From: Now in Superior WI Member No.: 43 Region Association: Northstar Region |
The one on Sandys Ravenna car is doing that also. (73) I haven't started the car yet just connected the battery and flipped the key for the first time. When you figure it out be sure to post the fix.
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Steve |
Sep 1 2011, 07:18 PM
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#7
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914 Guru Group: Members Posts: 5,585 Joined: 14-June 03 From: Orange County, CA Member No.: 822 Region Association: Southern California |
If you recently bleed your brakes the light will also flash. You have to push the little button on the side of the master cylinder to reset it.
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VaccaRabite |
Sep 1 2011, 07:31 PM
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#8
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En Garde! Group: Admin Posts: 13,442 Joined: 15-December 03 From: Dallastown, PA Member No.: 1,435 Region Association: MidAtlantic Region |
(IMG:style_emoticons/default/agree.gif)
If you have not bled your brakes, you may have a leak in there somewhere. Start looking. Zach |
rick 918-S |
Sep 1 2011, 09:21 PM
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#9
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Hey nice rack! -Celette Group: Members Posts: 20,456 Joined: 30-December 02 From: Now in Superior WI Member No.: 43 Region Association: Northstar Region |
The one on Sandys Ravenna car is doing that also. (73) I haven't started the car yet just connected the battery and flipped the key for the first time. When you figure it out be sure to post the fix. Oh ya! I just replaced the master cylinder, rebuilt all the calipers and replaced all the rubber brake hoses, new fluid, etc. I don't remember seeing a reset on the switch that is screwed into the master cylinder. Where in the reset? I can't find my chiltons or my haynes. Could be the E-brake handle switch considering the handle removed from the car before I purchased it. |
Steve |
Sep 1 2011, 11:43 PM
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#10
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914 Guru Group: Members Posts: 5,585 Joined: 14-June 03 From: Orange County, CA Member No.: 822 Region Association: Southern California |
The one on Sandys Ravenna car is doing that also. (73) I haven't started the car yet just connected the battery and flipped the key for the first time. When you figure it out be sure to post the fix. Oh ya! I just replaced the master cylinder, rebuilt all the calipers and replaced all the rubber brake hoses, new fluid, etc. I don't remember seeing a reset on the switch that is screwed into the master cylinder. Where in the reset? I can't find my chiltons or my haynes. Could be the E-brake handle switch considering the handle removed from the car before I purchased it. The flashing red "B" light is usually either related to the emergency brake handle or the button on the side of the master cylinder. If you reach your hand in from the drivers front fenderwell, you can feel the left side of the master cylinder. On my car its a little rubber boot on the left side of the master cylinder. If you push on the center of the rubber boot, you will feel the pin go in. That was all it takes to reset my 19mm master cylinder after bleeding the brakes or causing a loss in pressure from replacing a brake line or caliper. |
avidfanjpl |
Sep 2 2011, 12:33 AM
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#11
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914 Hemophiliac Group: Members Posts: 720 Joined: 6-April 10 From: Bear, Delaware Member No.: 11,566 Region Association: MidAtlantic Region |
Mine would not reset so I replaced it. Worked like a charm and does not leak when you are changing it out.
Those are notoriously cheaply made nylon. Got a single pole for almost nothing from AA last year. John |
dlestep |
Sep 2 2011, 06:44 AM
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#12
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I am smilin'... Group: Members Posts: 890 Joined: 15-January 08 From: Sunrise Florida Member No.: 8,573 Region Association: South East States |
Pull off the boot and locate the tiny little plastic button and push it towards the master cylinder. This resets the system, and turns off the brake system warning lamp.
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nsr-jamie |
Sep 2 2011, 07:07 AM
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#13
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914 guy in Japan Group: Members Posts: 1,182 Joined: 7-November 07 From: Nagoya, Japan Member No.: 8,305 Region Association: None |
Some of the master cylinders have them and some do not...I am not sure why...my car did not have the reset switch...I had this problem too but traced it to a wiring problem in my combo gauge from the past owner who did awful wiring work and has taken me years to redo his work of so called repairs. Here is a picture I found of the switch...I converted to a 19mm master cylinder and it doesn't have the switch but I know a guy with a 23mm one and his has it. |
rick 918-S |
Sep 17 2011, 11:56 AM
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#14
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Hey nice rack! -Celette Group: Members Posts: 20,456 Joined: 30-December 02 From: Now in Superior WI Member No.: 43 Region Association: Northstar Region |
OK, this needs a bump. I removed the lower pan and checked the reset on the master cylinder switch. I don't have one. (IMG:style_emoticons/default/dry.gif) I installed the missing "E" brake handle and rested it against the switch. The wire is going to the switch. Installed the battery and turned on the ignition.
(IMG:style_emoticons/default/confused24.gif) No joy (IMG:style_emoticons/default/confused24.gif) Any other idea's what I should check now? As a side note, I do not have the headlights or tail lights wired. Is there a second switch location? What about the brake switch for the brake lights? Fishing for ideas. (IMG:style_emoticons/default/idea.gif) Blink....blink.....blink....blink.... |
swl |
Sep 17 2011, 05:29 PM
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#15
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Senior Member Group: Members Posts: 1,409 Joined: 7-August 05 From: Kingston,On,Canada Member No.: 4,550 Region Association: Canada |
no wires going to the MC? sounds a little strange.
On the handbrake side the flashing is turned on by shorting to ground. Sometimes the switches go bad. On at least one occassion the wires have been pinched by the seat hardware and shorted there. If you can try pulling the wire off the handbrake switch. |
rick 918-S |
Sep 17 2011, 08:47 PM
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#16
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Hey nice rack! -Celette Group: Members Posts: 20,456 Joined: 30-December 02 From: Now in Superior WI Member No.: 43 Region Association: Northstar Region |
no wires going to the MC? sounds a little strange. On the handbrake side the flashing is turned on by shorting to ground. Sometimes the switches go bad. On at least one occassion the wires have been pinched by the seat hardware and shorted there. If you can try pulling the wire off the handbrake switch. I have been out at the lake all day making concrete planks. Well, there are two wires on the master cylinder switch but no reset button between them. I will try unplugging the wires and shorting them to ground. Thanks |
914itis |
Sep 17 2011, 08:54 PM
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#17
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Advanced Member Group: Members Posts: 2,892 Joined: 9-October 10 From: New York City Member No.: 12,256 Region Association: North East States |
Mine was the emergency handle. it was a bit up. I pushed it down and the light went away.
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nsr-jamie |
Sep 17 2011, 09:46 PM
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#18
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914 guy in Japan Group: Members Posts: 1,182 Joined: 7-November 07 From: Nagoya, Japan Member No.: 8,305 Region Association: None |
also don't forget the actualy switch under the ebrake handle too, those get pretty dirty and I had to pull mine out and gave it a good cleaning, checked the wires and cleaned the contacts. It needs to go all the way down to turn off the red light if its not the master cylinder
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pilothyer |
Sep 17 2011, 10:03 PM
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#19
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Member Group: Members Posts: 838 Joined: 21-May 08 From: N. Alabama Member No.: 9,080 Region Association: South East States |
Some of the master cylinders have them and some do not...I am not sure why...my car did not have the reset switch...I had this problem too but traced it to a wiring problem in my combo gauge from the past owner who did awful wiring work and has taken me years to redo his work of so called repairs. Here is a picture I found of the switch...I converted to a 19mm master cylinder and it doesn't have the switch but I know a guy with a 23mm one and his has it. In the picture of the master cylinder, I see the reset switch...it is the rubber covered piece in the center of the switch....right next to where the wire plugs onto. On some switches that don't seem to have one you can reset it by simply unscrewing the switch and pulling the plastic actuator back out. |
rick 918-S |
Sep 17 2011, 10:39 PM
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#20
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Hey nice rack! -Celette Group: Members Posts: 20,456 Joined: 30-December 02 From: Now in Superior WI Member No.: 43 Region Association: Northstar Region |
My reset actuator pin is in the back side of the switch. It's spring loaded and seems to move nicely. I unscrewed it and while it was out I reconnected the wires and the flashing stopped. I could activate the flasher by pressing the plastic pin. So the switch seems to be working.
I have one of two problems as far as I can figure. Either the switch is the incorrect one for the 19mm master cylinder I installed. (the plastic pin is too long and gets pressed when installed) or the switch is bad. I reinstalled the switch with two copper crush washers to space it out slightly. I tried one first but the switch was still depressing. Now the inner plastic switch pin is not being compressed and setting off the flasher. After I was able to stop the flashing I pulled the "E" brake handle and the light started to flash again. So the "E" brake warning light is working as it should. Thanks for the suggestions! Anyone ever had this issue when installing a 19mm master? (IMG:style_emoticons/default/idea.gif) |
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