Brake-Lights Switch: Notes
WARNING: This page is about a different car, the 2001 Saab 9-5. However, it is still accessible from the selected car via links, so may be relevant.
Current is supplied to the control module on pin 14 via the brake-lights switch when the brake pedal is depressed.
Information on the status of the brake-lights switch (ON/OFF) is used by the control module as follows:
- If the brake pedal is released and then depressed while the ABS is active, the control module will start from the beginning of the control cycle again.
- Brake-light switch ON is one of 4 criteria on which the control module determines whether or not to activate the EDB function.
- The pump motor test is normally conducted at 6 km/h (3.7 mph) but with brake light switch ON, the test will be conducted at 15 km/h (9.3 mph).
- If the brake pedal is depressed while the TCS function is active (brake light ON), the TC/ABS control module will disengage the TCS function for brake application and select the brake function. All other TCS functions will remain in operation.