P06DF - Glow Plug Control Module 1 Memory Checksum Error - DTC Chart

P06DF - GLOW PLUG CONTROL MODULE 1 MEMORY CHECKSUM ERROR - DTC CHART

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: Disconnect all GPCM connectors and inspect for damage such as pushed out pins or corrosion and repair as necessary. Connect all GPCM connectors. Clear the DTCs. Carry out the key ON, engine running (KOER) Glow Plug Monitor self-test. If the DTC is retrieved again, turn the ignition OFF and wait for 2 minutes. Reprogram the GPCM or update the GPCM calibration. Clear the DTCs. Carry out the KOER Glow Plug Monitor self-test. If the DTC is retrieved again, install a new GPCM. Refer to the service information , Glow Plug System.
Application	Key On Engine Off	Key On Engine Running	Continuous Memory
All	Refer to the Description, Possible Causes and Diagnostic Aids for the DTC.