Electric Parking Brake System AUTO Function Circuit: Description

The electric parking brake ECU receives shift position information from the TCM through CAN communication. When the engine switch is on (IG) and the electric parking brake switch AUTO switch is turned ON, the electric parking brake system AUTO function operates as follows: 1) when the brake pedal is depressed and the shift lever is moved from P to a position other than P, parking brake release control automatically operates; or 2) when the brake pedal is depressed and the shift lever is moved from a position other than P to P, parking brake lock control automatically operates.