Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Ford >> 2005 >> Freestar Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Powertrain DTC Charts & Description (Except Diesel & Hybrid) >> Diagnostic Trouble Code (DTC) Charts And Descriptions >> DTC P1640: Powertrain DTCs Available in Another Module

DTC P1640: Powertrain DTCs Available in Another Module

P1640 - POWERTRAIN DTCS AVAILABLE IN ANOTHER MODULE

Description:  Vehicles using a secondary engine control module can request that the powertrain control module (PCM) illuminates the malfunction indicator lamp (MIL) when a failure occurs which affects emissions.
Possible Causes: 
  • DTCs stored in a secondary module, which requested the MIL to be turned on
Diagnostic Aids:   
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All Refer to the Description, Possible Causes and Diagnostic Aids for the DTC.
scientia non olet · About Mike's Workshop Manuals