Ford 2003 Mustang Workshop Manual page 2324

75 - sets EPC pressure to 517 kPa (75 psi).
90 - sets EPC pressure to 620 kPa (90 psi).
XXX - cancels OSC value sent.
SEND - sends the values to PCM.
BENCH MODE Procedure for EPC
Follow operating instructions from the scan tool menu screen:
Select "Output State Control."
Select "Trans - Bench Mode."
Select "PIDs" to be monitored.
Monitor all selected PIDs during test.
Select "Parameters - EPC."
Select Value "0-620 kPa (0-90 psi)."
Press "SEND" to send command.
Select "XXX" to cancel at any time.
Press "SEND."
OSC — Transmission DRIVE MODES
The DRIVE MODE allows control of three transmission parameters. Each mode/parameter has a
unique set of vehicle operating requirements that the technician is required to meet before being
allowed to operate OSC. The recommended procedure, when using the DRIVE MODE, is to control
one parameter at a time.
The DRIVE MODE allows the technician to carry out the following functions on the transmission:
GR_CM - allows upshifts or downshifts.
TCC - engages or disengages the torque converter clutch.
EPC - increases/decreases EPC pressure.
GR_CM in DRIVE MODE
This OSC function is used to test the transmission shift functions.
The OSC functions for the GR_CM parameter allows the technician to choose the following options:
1 - PCM selects 1st gear.
2 - PCM selects 2nd gear.
3 - PCM selects 3rd gear.
4 - PCM selects 4th gear.
OSC "GR_CM" Mode operates ONLY when:
the digital TR sensor is operational and no digital TR sensor DTCs are present.
the vehicle speed sensor is operational and no VSS sensor DTCs are present.