Ford Explorer

HAVE YOU CHECK FUEL PRESSURE AND FUEL PUMP
IS THE OD LIGHT BLINKING
OR THE 4WD LIGHT

The electronic module (located behind the glove compartment) controls the operation of the transfer case in response to inputs from the electric shift motor, 4x4 mode switch, CPP switch, BPP switch, DTR sensor, throttle position output from the PCM, front and rear OSS sensors, and the VSS
A scan tool is needed to scan transfer case for trouble codes
an OBDII reader will NOT get you any codes from the transfer module
With the key in the ON position, the 4WD control module receives the operator's choice of four-wheel drive selection from the message center. The 4WD control module then controls the electric clutch. If the transfer case is not responding to the operator's intentions, systematically check all inputs and outputs to the 4WD control module. Check all circuits for opens and shorts to ground.