EPC In Bench Mode

The BENCH MODE is also used to test the functionality of the transmission's electronic pressure control. During BENCH MODE, the EPC solenoid can ramp in increments of 15 PSI from zero to 90 PSI and 90 to zero PSI.

The OSC functions for the parameter EPC allows the technician to choose the following options:
- EPC - Activates EPC to selected values.
- [00] - sets EPC pressure to 00 kPa (00 PSI).
- [15] - sets EPC pressure to 103 kPa (15 PSI).
- [30] - sets EPC pressure to 206 kPa (30 PSI).
- [45] - sets EPC pressure to 310 kPa (45 PSI).
- [60] - sets EPC pressure to 411 kPa (60 PSI).
- [75] - sets EPC pressure to 517 kPa (75 PSI).
- [90] - sets EPC pressure to 620 kPa (90 PSI).

OSC "EPC" BENCH MODE Operates ONLY when:
- anti-lock brake speed sensor and digital TR sensor are operational.
- No anti-lock brake speed sensor and digital TR sensor DTCs.
- Transmission range selector lever in P.
- Pressure gauge installed.
- Key ON.
- Engine ON.
- Engine RPM at 1500.

OSC Command Values
- [00] - sets EPC pressure to 00 kPa (00 PSI).
- [15] - sets EPC pressure to 103 kPa (15 PSI).
- [30] - sets EPC pressure to 206 kPa (30 PSI).
- [45] - sets EPC pressure to 310 kPa (45 PSI).
- [60] - sets EPC pressure to 411 kPa (60 PSI).
- [75] - sets EPC pressure to 517 kPa (75 PSI).
- [90] - sets EPC pressure to 620 kPa (90 PSI).
- [OFF] - turns solenoid off.
- [ON] - turns solenoid on.
- [XXX] - cancels OSC value sent.
- [SEND] - sends the values to PCM.

BENCH MODE Procedure for EPC
Following operating instructions from the NGS 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".