LEMON Manuals: Even more car manuals for everyone
Home >> Ford >> 2000 >> Contour SE, 2.5 L, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 753 (Engine Controls - Powertrain DTC Charts & Descriptions - CNG, Flex-Fuel & Gasoline) >> Diagnostic Trouble Code (DTC) Charts >> P1640 - Powertrain DTCS Available In Another Module

P1640 - Powertrain DTCS Available In Another Module

WARNING: This page does not describe the selected car, but rather 30 other vehicles, including the 2004 Mercury Sable, 2004 Mercury Mountaineer, 2004 Mercury Monterey, 2004 Mercury Marauder, and 2004 Mercury Grand Marquis. However, it is still accessible from the selected car via links, so may be relevant.
P1640 - POWERTRAIN DTCS AVAILABLE IN ANOTHER MODULE

Description:  Vehicles using a secondary Engine Control Module can request that the Powertrain Control Module illuminate the Check Engine light 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:  Call -up PID address 0946 to determine the secondary module requesting MIL illumination. Once the secondary module is determined, request the DTCs from the module.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All - - See the appropriate INTRODUCTION - BI-FUEL article for instructions on how to retrieve DTCs from the secondary module. See P1640 Diagnostic Trouble Code (DTC) Descriptions for additional information.
scientia non olet · About LEMON Manuals