Dash warning lights

Feb 17th, 2003, 07:27 AM

The "Battery" and "Brake" red warning lights both came on this weekend. Seems a bit strange that they would both come on at the same time.
I was thinking that maybe they had a common elertical connection that might be the problem. The master cylinder fluid switch I shunted (no change except a slight variation in intensity of dash brake light), the hand brake same thing. This evening I am going to check the voltage output on the alternator.

Anyone had a simular problem or can offer a solution.

Thanks

skylineawd · Feb 18th, 2003, 12:28 PM

I had the brake light come on before. I just raised the ebrake thing again and slammed it down. The light went off. Then about a month later it came back on. I then changed the brake pads, and the light went back off. When was the last time you changed the brake pads on the car? I'm really not sure, but I didn't think that our cars came with that sensor for it, but it sure worked.

Dwntyme · Feb 18th, 2003, 12:34 PM

It's your alternator.

skylineawd · Feb 24th, 2003, 11:18 AM

Alternator ?????

Spddracer · Feb 25th, 2003, 07:18 PM

Yes your alternator is dead ! The diodes have gone bad hince your warning lights coming on , Sorry

skylineawd · Feb 25th, 2003, 09:50 PM

hmm, this does sound like it would make sence.

Spddracer · Feb 25th, 2003, 09:58 PM

Quote:

Originally posted by skylineawd
I had the brake light come on before. I just raised the ebrake thing again and slammed it down. The light went off. Then about a month later it came back on. I then changed the brake pads, and the light went back off. When was the last time you changed the brake pads on the car? I'm really not sure, but I didn't think that our cars came with that sensor for it, but it sure worked.

Thats becase your brake fluid level was low , When you put the new pads on the fluid displced in the caliper goes back in the MAster cylinder raisng the float switch to turn off the light

skylineawd · Feb 26th, 2003, 10:31 AM

Quote:

Originally posted by Spddracer
Thats becase your brake fluid level was low , When you put the new pads on the fluid displced in the caliper goes back in the MAster cylinder raisng the float switch to turn off the light

O yeah!!!!!

I have a question though. How do get to low brake fluid if the pads are still ok. The fluid doesn't leak from anywhere, I wouldn't think that just because the pads are down 1 cm on both sides would really lower the brake fluid that much to cause a warning light to come on. So where does the brake fluid go????

Spddracer · Feb 26th, 2003, 03:52 PM

When your pads wear the fluid level will go down As your pads wear it takes more fluid to fill the piston cavity in the caliper , So yes it will go down , If it is filled to the correct level when oyu put new pads on normally when the light comes on for low fluid your pads are about worn out

skylineawd · Feb 26th, 2003, 04:28 PM

So just by dropping that little amount the light will come on????

billgator · Nov 8th, 2004, 09:44 AM

This weekend both my brake and battery dash warning lights (stayed on) came on in my 1996 Nissan Pathfinder. I am also thinking that this is an electrical problem common to both. My fuses and brake fluid look fine. Has anyone else had this problem and what was the resolution? Thanks!

Quote:

Originally Posted by The_Tango

The "Battery" and "Brake" red warning lights both came on this weekend. Seems a bit strange that they would both come on at the same time.
I was thinking that maybe they had a common elertical connection that might be the problem. The master cylinder fluid switch I shunted (no change except a slight variation in intensity of dash brake light), the hand brake same thing. This evening I am going to check the voltage output on the alternator.

Anyone had a simular problem or can offer a solution.

Thanks

arnie · Sep 27th, 2005, 08:14 AM

Quote:

Originally Posted by The_Tango

The "Battery" and "Brake" red warning lights both came on this weekend. Seems a bit strange that they would both come on at the same time.
I was thinking that maybe they had a common elertical connection that might be the problem. The master cylinder fluid switch I shunted (no change except a slight variation in intensity of dash brake light), the hand brake same thing. This evening I am going to check the voltage output on the alternator.

Anyone had a simular problem or can offer a solution.

Thanks

HELO JUST HAD SAME EXACT THING HAPPEN,IF I DETERMINE PROBLEM WILL LET YOU KNOW.

arnie · Sep 27th, 2005, 08:19 AM

Quote:

Originally Posted by The_Tango

The "Battery" and "Brake" red warning lights both came on this weekend. Seems a bit strange that they would both come on at the same time.
I was thinking that maybe they had a common elertical connection that might be the problem. The master cylinder fluid switch I shunted (no change except a slight variation in intensity of dash brake light), the hand brake same thing. This evening I am going to check the voltage output on the alternator.

Anyone had a simular problem or can offer a solution.

Thanks

HELO HAS YOUR FUEL GUAGE BEEN WORKING PROPERLY,IF NOT ITS POSSIBLE THEIRS A SHORT IN SENDING UNIT RUNNING FUEL PUMP CONSTANTLY,CAUSING THE BATTERY TO BE DRAINED.

arnie · Sep 27th, 2005, 08:22 AM

Quote:

Originally Posted by skylineawd

O yeah!!!!!

I have a question though. How do get to low brake fluid if the pads are still ok. The fluid doesn't leak from anywhere, I wouldn't think that just because the pads are down 1 cm on both sides would really lower the brake fluid that much to cause a warning light to come on. So where does the brake fluid go????

YOU MAY HAVE A VERY MINOR LEEK IN BRAKE LINE.WHEN WERE THEY DONE LAST.

jserrano · Sep 27th, 2005, 10:00 AM

Folks, as it has already been mentioned, a combination of brake and battery charge light that are both ON at the same time means a bad alternator, period. If you study the schematic diagram you will see how that is so.