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After starting engine in my 2003 winstar the brake warning light comes on and i lose power to the rest of the dash no brake lights or turn signals radio goes out and no power to the windows. when i shut the key of all of the power seems to come back on. but battery seems drained. after driving with no power to dash the battery seems dead.
Re: After starting engine in my 2003 winstar the brake...
I believe therre was a recall for this problem on the windstars. They have to add an additional small wiring harness to the ABS/Brake system Call a dealer, Have your VIN number ready
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Was any of the brake light bulbs changed recently, the wrong type of bulb may be used causing a short in the socket, and making the rest of the brake and signal circuit malfunction. I no bulbs were recently replaced, start with checking for corrosion in each bulb socket, signal and brake bulb sockets. Let us know what you find
Have you checked for power on the major fuses that power the engine controls and instrument cluster ? Could be a problem with the key switch or a relay depending on the make model and year.
the overdrive is the 4th gear. considering that it may not be an issue with your computer switching gears to fourth but an issue with the transmission itself. this light could be a signal instead of and engine warning light where the engine is fine but the transmission isnt.
"Brake system warning light: To confirm the brake system warning light is functional, it will momentarily illuminate when the ignition is turned to the ON position when the engine is not running, or in a position between ON and START, or by applying the parking brake when the ignition is turned to the ON position. If the brake system warning light does not illuminate at this time, seek service immediately from your dealership. Illumination after releasing the parking brake indicates low brake fluid level and the brake system should be inspected immediately by your servicing dealership."
In short, as your brake linings (pads and shoes) wear out, the brake fluid level in the reservoir goes down.
You're probably right at the point where the level gets low enough to turn on the warning only under specific circumstances (cornering? hard braking?).
You can top off the fluid for the short term, but you should have your brakes inspected fairly soon.
I had EXACTLY the same problem with a friends car i was doing work on.
Your problem is almost certainly a faulty brake light switch. This is a
common fault and brings on the dash lights you describe. The switch is
located just above the brake pedal and is easy to fit. If you can get
the OBD codes read...My guess is it will show up this switch as faulty.
Good luck
John
Check and see if your alternator is charging Low voltage will cause those lights to come on, as the computer is shutting down.
To check your alternator you will need a volt meter... WITH the engine running you should have about 14 volts coming out. IF NOT you need to replace the Alternator!
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