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Pinpoint Test C : DTCS P07F2, P07F3, P07F4: Notes

WARNING: This page is about a different car, the 2018 Lincoln MKC. However, it is still accessible from the selected car via links, so may be relevant.

Refer to Transmission Controls - 6F35 for schematic and connector information.

Normal Operation and Fault Conditions 

The GSM and the TRCM communicate on the HS-CAN but use a redundant PWM hard wired system as a backup. If the HS-CAN system fails, the GSM and TRCM communicate via this hard wired system.

DTC Fault Trigger Conditions 

DTC Description Fault Trigger Conditions
P07F2 Transmission Range Control Module Communication Circuit The GSM detects a voltage signal out of calibrated range.
P07F3 Transmission Range Control Module Communication Circuit Low The GSM detects a voltage low signal. Circuit shorted to ground.
P07F4 Transmission Range Control Module Communication Circuit High The GSM detects a voltage high signal. Circuit open or shorted to power.

Possible Sources 

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