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P161A - Incorrect Response From Immobilizer Control Module

DTC DESCRIPTION P161A - INCORRECT RESPONSE FROM IMMOBILIZER CONTROL MODULE

Description:   
Possible Causes:   
Diagnostic Aids:  Refer to the Service Information, Electronic Engine Controls.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All Refer to the Description, Possible Causes and Diagnostic Aids for the DTC.