LINEDSD in BENCH MODE

WARNING: This page is about a different car, the 2006 Mercury Grand Marquis and 2006 Ford Crown Victoria. However, it is still accessible from the selected car via links, so may be relevant.

The LINEDSD in BENCH MODE may be used when carrying out an electrical check on the EPC solenoid or to test the functionality of the transmission's electronic control of the line pressure. When testing the EPC for controlling the line pressure, the technician is required to run the engine greater than 1,500 rpm. The installation of a hydraulic pressure gauge is required to actually test whether the transmission line pressure is correct. This will test whether the hydraulic pump, the pressure regulator and the EPC solenoid and other associated mechanical and hydraulic components are working correctly.

When carrying out an electrical test on the EPC solenoid, set LINEDSD to 1,379 kPa (200 psi) to command the EPC solenoid OFF and 345 kPa (50 psi) to command the EPC solenoid ON.

Commanding 1,379 kPa (200 psi) may not electrically turn the pressure solenoid completely off and commanding 345 kPa (50 psi) may not electrically turn the pressure solenoid completely on.

The OSC functions for the parameter LINEDSD allow the technician to choose the following options:

50 - Directs PCM to command line pressure to 345 kPa (50 psi)
75 - Directs PCM to command line pressure to 517 kPa (75 psi)
100 - Directs PCM to command line pressure to 689 kPa (100 psi)
125 - Directs PCM to command line pressure to 862 kPa (125 psi)
150 - Directs PCM to command line pressure to 1,034 kPa (150 psi)
175 - Directs PCM to command line pressure to 1,207 kPa (175 psi)
200 - Directs PCM to command line pressure to 1,379 kPa (200 psi)
XXX - Cancels OSC command for line pressure (returns to normal operation)

The vehicle requirements for sending an OSC value for LINEDSD in BENCH MODE are as follows:

Key on and engine off or key on engine running (engine speed greater than 1,500 rpm)
Range selector in PARK or NEUTRAL

The vehicle requirements must be met when sending the OSC value for EPC. If the vehicle requirements are not met when sending the OSC value, an error message will appear. When the error message is received, OSC is aborted and must be restarted. After the OSC value for EPC is sent, if the vehicle requirements are no longer met, the error message will not appear but the OSC value will be cancelled by the PCM (monitor corresponding PID). The OSC value XXX may be sent anytime to cancel OSC.