Question about 2008 Audi A6
Check & replace if necessary the brake pedal switch placed above pedals on the support.
If the problem still occurs you might access the ESP & ABS 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 ESP & ABS ECU & reset it.
I'm convinced that your brake pedal switch is faulty because the glow plug warning light went ON, flashing and you can not take your ignition key out. Just replace the brake pedal switch, see if rear stop lamps light when press the brake pedal, and test the car on the road.
Two sensors are provided for engine starting authorization: The first one is placed on the automatic gearbox shift selector electronic module, which send a signal to the ignition switch barrel only if the shift knob is placed in park - "P" position, or in neutral - "N" position. Only now you can take out the ignition key from the ignition switch barrel. The second one is the brake pedal switch placed above brake pedal in the pedals bracket, which send a signal to the ignition switch barrel only if the brake pedal is depressed. Only now it is possible to cranking the engine by the electrical starter motor.
Posted on May 20, 2011
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Posted on Jan 02, 2017
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