P1640 FORD - Powertrain DTCs Available in Another Module

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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Possible causes

  • Diagnostic Trouble Code (DTC) stored in a secondary module, which requested the MIL to be turned on.

Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P1640 Ford Description

Vehicles using a secondary Engine Control Module can request that the Powertrain Control Module (PCM) illuminate the Malfunction Indicator Lamp (MIL) when a failure occurs which affects emissions.
OBDII Code P1640 Ford - Powertrain DTCs Available in Another Module - AutoCodes.com

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P1640 FORD Comments

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