Brake/electrical problem I have a 2002 A4 Avant 2.0 petrol - all 3 brake lights have gone out and ABS and ESP warning lights have come on, all things simultaneously. Have tried changing the fuses but no luck...

VSC ABS and ! lights plus red (!) - Toyota Prius Forum ...

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Jun 3, 2008 - 8 posts - ‎3 authors
If the accumulator fails, you will get a red brake warning light and the pump will now run continuosly until it burns out. ... hydraulic pressure to the brake system and "no"red warning lights. .... Fog Lights, PassGas, Toyota Prius General Discussion, 4, 10-13-2005 09:12 AM ... 11-13-2015 10:01 PM by Tim Lee.

Alarm with Brake Light, ABS, VSC and amber warning lights ' PriusChat

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Jul 26, 2005 - Later that same day - I started getting an alarm - as soon... ... Gen 2 (2004-2009) Toyota Prius Forums > Gen 2 Prius Care, ... Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by NorthStar, Jul 26, 2005. ... I am getting the red BRAKE LIGHT, the amber waming symbol, ABS, and ... VSC, ABS, (!) and emergency brake light on
Feb 5, 2010
Brake, Brake warning, ABS, VSC appear
Oct 5, 2008
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Brake light switch problem may cause the ESP / BAS lights to illuminate.

Common symptoms of a bad
Mercedes brake light switch.

• Car stuck in Park.
• ABS ESP ETS lights come on.
• Can not move the shifter from Park to Drive.
• Brakes Defective Warning on Instrument Cluster
• Car won't shift gears. Stuck in 2nd gear, limp mode.
• Brake lights don't work. (Brake light switch can still be defective even if the brake lights work. Checking the brake light operation is not a good test.)
• ESP, BAS, ABS lights turn on. Car won't shift properly. Stuck in gear.

TEST: To test your new brake light switch: Turn you car off to reset the ABS light. apply the parking brake. and start the car in neutral or park without using the brake. if the problem is the brake light switch... the light will only come on when you press the brake pedal.

If you replaced the brake light switch and the light is still on you should check a few other things such as:

• Fuses and Relays
• ABS pump
• ABS wheel speed sensor
• Brake Fluid Level
• Get an advanced scanner to read trouble codes.

NOTE: ** You may need a MBZ scan tool to reset the error code which was stored in the ECU because of the bad brake light switch.

Check & replace if necessary the brake pedal switch placed above pedals on the support.
If the problem still occurs you might access the ABS & ESP ECU (Electronic Control Unit) using diagnostic equipment connected to the data link connector of the car, in order to pull out all DTC (Diagnostic Trouble Codes) memored.
Then you will be able to replace bad piece(s) and fix the problem by erasing all DTC stocked inside ABS ECU & reset it.

The ESP system means the Electronic Stability Program. If the ESP lights on the dashboard permanently the ESP system is faulty. You must access the ESP Electronic Control Unit (ECU) memory for pull out all DTC (Diagnostic Trouble Codes), using diagnostic equipment connected to the data link connector of the car. Then you will be full informed about bad pieces (e.g.: brake pedal switch, front right wheel abs sensor interrupted, ...). After bad pieces replacement you will be able to erase all faults memored by ESP ECU, in other words reset the ESP system and turn off the warning lamp on dashboard.
I'm convinced that your brake pedal switch is faulty because the glow plug warning sign went ON after ESP warning light. Just replace the brake pedal switch, see if rear stop lamps light when press the brake pedal, and test the car on the road.
Good Luck!

Check & replace if necessary the brake pedal switch placed above pedals on the support.
If the problem still occurs you might access the ABS & ESP ECU (Electronic Control Unit) using diagnostic equipment connected to the data link connector of the car, in order to pull out all DTC (Diagnostic Trouble Codes) memored.
Then you will be able to replace bad piece(s) and fix the problem by erasing all DTC stocked inside ABS ECU & reset it.

The ESP system means the Electronic Stability Program. If the ESP lights on the dashboard permanently the ESP system is faulty. You must access the ESP Electronic Control Unit (ECU) memory for pull out all DTC (Diagnostic Trouble Codes), using diagnostic equipment connected to the data link connector of the car. Then you will be full informed about bad pieces (e.g.: brake pedal switch, front right wheel abs sensor interrupted, ...). After bad pieces replacement you will be able to erase all faults memored by ESP ECU, in other words reset the ESP system and turn off the warning lamp on dashboard.
I'm convinced that your brake pedal switch is faulty because the glow plug warning sign went ON after ESP warning light. Just replace the brake pedal switch, see if rear stop lamps light when press the brake pedal, and test the car on the road.
Good Luck!

the car is telling you that it needs new brake pads.if the light was on all the time then your abs would need work..get new pads asap.

The speedo not working causes these 3 lights to come on due to the speed of the car needed for the ABS ESP to work . Engine management light is on due to the first 2 lights . Happenned to me last night. Dont know what is up with your speedo . You have to reset the lights after speedo fixing as I am uncertain whether they will reset themselves.

loss of power sure car is breaking !!! some of the abs sensor broken or dirty

The light can be reset by disconnecting the battery for about 10 minutes....this will also reset your radio time, and anything else electrical.

I would recommend however, taking the car to a dealership if the warning light is tripped again, just for safety precautions.

Good luck, and God Bless!

HAS THE BATTERY BEEN DISCONNECTED AND THEN RECONNECTED, IF SO WILL GO OUT AGAIN AFTER DRIVING A SHORT DISTANCE..IF NOT GET BACK TO ME..IT WILL ALSO COME ON IF A FAULT SHOULD OCCUR IN THE ABS.THE ESP OPERATES IN CONJUNCTION WITH THE ABS..

I had the brake light switch replaced by a local dealer. Cost was $140 and it fixed the problem. Have driven the car for two weeks since and no lights and all systems normal.