B2479 FORD – Brake Park Switch Circuit Short To Ground

B2479 FORD Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light)

B2479 FORD Possible Causes

Faulty Brake Park Switch,Brake Park Switch harness is open or shorted,Brake Park Switch circuit poor electrical connection

B2479 FORD Description

The Instrument Cluster (IC) uses 3 basic messaged inputs to control the brake warning indicator. The first 2 are the parking brake warning indicator switch and brake fluid level switch. The third is for the Electronic Brake Distribution (EBD), controlled by the ABS. The parking brake warning indicator switch and the brake fluid level switch status are sent from the Smart Junction Box (SJB) over the Medium Speed Controller Area Network (MS-CAN) communication bus. The EBD message is sent from the ABS module over the High Speed Controller Area Network (HS-CAN) communication bus lines.