B1485 Code: Meaning, Causes, and Symptoms | OBD2 Codes

B1485 – Brake Pedal Input Circuit Battery Short


B1485 Possible Symptoms


Engine Light ON (or Service Engine Soon Warning Light)


B1485 Possible Causes


Faulty Brake Pedal Position Switch,Brake Pedal Position Switch harness is open or shorted,Brake Pedal Position Switch circuit poor electrical connection,Faulty Smart Junction Box (SJB)


B1485 Description


Fused battery voltage is supplied to the Brake Pedal Position (BPP) Switch from Smart Junction Box (SJB) fuse along the circuit. When the brake pedal is pressed, the BPP switch supplies fused battery voltage to the Anti-Lock Brake System (ABS) module, the Powertrain Control Module (PCM) and the SJB along the circuit.