B1690 Code: Meaning, Causes, and Symptoms | OBD2 Codes

B1690 – Autolamp Delay Circuit Open

 

B1690 Possible Symptoms

 

Engine Light ON (or Service Engine Soon Warning Light)

 

B1690 Possible Causes

 

Faulty Autolamp Delay Circuit,Faulty Body Control Module (BCM)

 

B1690 Description

 

The Body Control Module (BCM) monitors the Autolamp Delay Circuit. The BCM sets the OBDII code when the Autolamp Delay Circuit is not to factory specifications.