DTC P06DF - Glow Plug Control Module 1 Memory Checksum Error

P06DF - GLOW PLUG CONTROL MODULE 1 MEMORY CHECKSUM ERROR

Description:	This DTC sets when the glow plug control module (GPCM) indicates an internal software error has occurred.
Possible Causes:	An attempt was made to change the calibration Aftermarket performance products GPCM programming error Internal GPCM error
Diagnostic Aids:
Application	Key On Engine Off	Key On Engine Running	Continuous Memory
All	GO to PINPOINT TEST AF .