E: Electronic Pressure Control (EPC) Solenoid

Test E1:

Test E1 - E2:

Test E2 - E3:

Test E3 - E4:

Test E5:

Diagnostic Trouble Code (DTC) List:
P0746 Electronic Pressure Control (EPC) solenoid hydraulic or mechanical failure.
P1745 EPC solenoid, circuit or Powertrain Control Module (PCM) shorted or open.
P1746 EPC solenoid, circuit or PCM indicates open.
P1747, P1760 EPC solenoid or PCM indicates short.
P1749 EPC solenoid, circuit or PCM grounded.

This pinpoint test is intended to diagnose the EPC solenoid electrical system only. To prevent replacement of good components, be aware that the following areas may be at fault:
- Electrical.
- Battery, input sensors, wiring harnesses.
- Transmission.
- Internal transmission components.

This pinpoint test is intended to diagnose the following components:
- Transmission wiring harness, EPC solenoid.
- PCM.