B1543 Code: Meaning, Causes, and Symptoms | OBD2 Codes

B1543 – Seat Direction Switch Assembly Circuit Failure

 

B1543 Possible Symptoms

 

Engine Light ON (or Service Engine Soon Warning Light)

 

B1543 Possible Causes

 

Faulty Seat Direction Switch Assembly,Seat Direction Switch Assembly harness is open or shorted,Seat Direction Switch Assembly circuit poor electrical connection,Faulty Body Control Module (BCM)

 

B1543 Description

 

The Body Control Module (BCM) monitors the Seat Direction Switch Assembly. The BCM sets the OBDII code when the Seat Direction Switch Assembly is not to factory specifications.