B1484 Code: Meaning, Causes, and Symptoms | OBD2 Codes

B1484 – Brake Pedal Input Open Circuit


B1484 Possible Symptoms


Engine Light ON (or Service Engine Soon Warning Light)


B1484 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)


B1484 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.