Code 31, Open In 36-VLR To Deployment Loop: Description

Code 31 indicates an open in wiring between 36-VLR output of DERM and the arming sensor. When 36-VLR output of the DERM is functional, the voltage at the SENSE LOW input, DERM terminal A6, is within a specific range of 36-VLR output voltage, DERM terminal A2. Should the circuit open between the 36-VLR output and the arming sensor, IGN 1 voltage will be supplying the deployment loop. The voltage at the SENSE LOW input, DERM terminal A6, will decrease due to the lower supply voltage and Code 31 will set after 700 milliseconds (if Code 42 is not set).