B1A33 Code: Meaning, Causes, and Symptoms | OBD2 Codes

B1A33 – Universal Garage Door Switch 2 Stuck

 

B1A33 Possible Symptoms

 

Engine Light ON (or Service Engine Soon Warning Light)

 

B1A33 Possible Causes

 

Faulty Universal Garage Door Switch 2,Universal Garage Door Switch 2 harness is open or shorted,Universal Garage Door Switch 2 circuit poor electrical connection,Faulty Electronic Overhead Module (EOM)

 

B1A33 Description

 

The Electronic Overhead Module (EOM) monitors the Universal Garage Door Switch 2. The EOM sets the OBDII code when it detects an internal switch failure.