Question

Does this apply do a vehicle that does not have cruise control?
This 2007 Suzuki Reno does not have cruise control. The car has been overheating, yet I cannot figure out where the leak is originating.

Answer 1

P0571 Brake switch circuit

The brake switch is used by a automatic transmission for TCC (torque convertor clutch ) lock up to release, a to cancel a cruise control ( vehicles with cruise control ) the ABS unit, and the brake light so your not slammed from the rear. Some of that is hard to find is the heater connection and sometimes the heater core, The best way to find a leak is  a cooling pressure tester,