B1370 FORD, LINCOLN, MERCURY: DOOR HANDLE GROUND SUPPLY SIGNAL STUCK
POST UPDATED IN February, 2023
B1370 FORD, LINCOLN, MERCURY: DOOR HANDLE GROUND SUPPLY SIGNAL STUCK
The Remote Function Actuator Module (RFA) gets the radio frequency signals from the Remote Function Receiver Module (FRF) and IA (Intelligent Access) key transmitters. The RFA is provided with various input signals from different modules and other components. As a result, the Remote Function Actuator Module generates an output signal for the control of various components, including the door locks and the back door.
When the B1370 OBDII diagnostic code is stored on Ford, Lincoln, and Mercury vehicles, it is because the Remote Function Actuator detected a short to ground or a voltage from the outside door handle ground supply circuit.
The B1370 OBD2 fault code B1370 is set for the following reasons:
To troubleshoot the DTC B1370 OBDII code, try this: