2 replies to this topic

[mcaville]

The brake fluid warning light has come on despite there being adequate fluid levels. Why?
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Sprite Auto:
1994:
The red brake warning light on the dash console has started coming on. I immediately consulted the manual and discovered that this is an indicator that the brake fluid levels had dropped too low. I purchased some DOT 4 fluid before checking the level, but on inspection it seems that the levels are absolutely fine - way above minimum. As i had just bought the fluid i topped it up to max anyway. The problem is that the light still comes on. It is always on when i get in the car but sometimes goes off once i have been driving for 10 minutes or so.

Can anyone tell me what might be wrong? The car doesn't seem to have a problem with stopping, but if there is a potential problem i like to get on it as quickly as possible.

Martin:

[Darkscamp]

check the brake filler cap for any defects as these cause issues with the warning light if stuck or the contacts corroded

[Disco Dan]

Remove the cap and clean it with brake fluid. You can see the switch in the lid to inspect, also check contacts.

Also check the wires going into the switch - they are 4 wires going to the switch, two for the bulb in the switch the other two for the 'test'. You may have a loose wire or false ground?