Cayenne RS 2005 not starting. Keeps giving "Press Brake Pedal Signal" even when pressing brake and then the brake becomes hard, and message shows "Brake Proportioning"

30

Asked by Jun 24, 2014 at 02:08 PM about the 2005 Porsche Cayenne S AWD

Question type: Maintenance & Repair

Cayenne RS 2005 not starting. Keeps giving "Press Brake Pedal Signal" even when
pressing brake and then the brake becomes hard, and message shows "Brake
Proportioning"

5 Answers

115,865

Check and see if you have brake lights. If not then the system is not getting a brake on signal, could be a fuse or a switch or even broken wiring in the brake signal circuit.

1 people found this helpful.
30

Checked break lights...break light is not coming on.

30

Also what does the "Brake Proportioning" message indicate?

2 people found this helpful.
115,865

It is telling you that you have lost equalization brake line pressure in the system. I would not worry about that right now, it might go away after you fix the voltage signal for the brake light circuit. Have you checked the brake light fuse?

2 people found this helpful.
30

Will check the break light fuse/switch. Thanks.

1 people found this helpful.

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