DTC P1630: Theft Deterrent Learn Mode Active: Description

The theft deterrent control module produces theft deterrent fuel enable signal when ignition is on and proper transponder key value is detected. The PCM monitors the fuel enable signal during crank. If the proper signal is present on the class 2 serial data circuit, the PCM enables fuel delivery in order to allow engine to start. If PCM is replaced, the replacement PCM should learn the password within a few seconds after ignition is turned on. DTC P1630 is an information code indicating that PCM is ready to learn the theft deterrent password. The engine starts and continues to run with DTC P1630 set.