P1674 – Control Module Software Corrupted

P1674 Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light)

P1674 Possible Causes

Software incompatibility issue,Damaged Powertrain Control Module (PCM)

P1674 Description

The Throttle Actuator Control (TAC) system is in the Failure Mode Effects Management (FMEM) mode of forced engine shutdown. Indicates an error occurred in the Powertrain Control Module (PCM). This code sets in combination with P2105.