DTC P1380 GMC

Description

Note! This diagnostic trouble code (DTC) status is an event controlled diagnostic trouble code (DTC). An event controlled diagnostic trouble code (DTC) does not mean that there is a fault in the control module when it is active, but is designed as information. The control module is continually supplied with necessary information from the Engine control module (ECM) via CAN communication. The control module checks the quality of the information from the Engine control module (ECM). The diagnostic trouble code (DTC) is stored if the control module detects that: Information from Engine control module (ECM) is incorrect unreasonable. The control modules test for the diagnostic trouble code (DTC) starts when: The vehicle is in normal mode. Engine running. The voltage supply to the control module is 9-16 V. Note! The control module can only detect the fault once the test has been started and the diagnostic trouble code (DTC) is stored when the conditions are met.