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Home/DTC Codes/Lincoln/LS/2000-2006 3.0L V6/P1746
P1746

Electronic Pressure Control Solenoid Open Circuit

2000-2006 Lincoln LS 3.0L V6

High SeverityPowertrain

Description

The Electronic Pressure Control (EPC) solenoid has an open circuit. The EPC solenoid regulates hydraulic line pressure in the transmission. Without proper EPC operation, transmission shifting is severely affected.

Symptoms

  • Check Engine Light
  • Harsh or erratic shifting
  • Transmission slipping
  • Limp mode (stuck in one gear)
  • Transmission overheating

Common Causes

  • Faulty EPC solenoid
  • Wiring open to EPC solenoid
  • Corroded EPC solenoid connector
  • Damaged PCM/TCM driver circuit

Diagnostic Steps

  1. Test EPC solenoid resistance
  2. Inspect EPC solenoid wiring and connector
  3. Check for corroded pins at transmission connector
  4. Monitor EPC pressure on scan tool

Repair Notes

Replace EPC solenoid. Repair wiring. May require transmission pan removal.

Related Codes

P1747Electronic Pressure Control Solenoid Short CircuitP1747Electronic Pressure Control Solenoid Short CircuitP1747Electronic Pressure Control Solenoid Short CircuitP1747Transmission Failsafe Relay FaultP1747Transmission Failsafe Relay FaultP1747Electronic Gear Selector CAN Fault

Other Powertrain Codes

P1746 on Other Vehicles

Lincoln Aviator

2003-2005 4.6L V8

Lincoln Aviator

2003-2005 4.6L V8 DOHC

Lincoln Aviator

2020-2024 3.0L Twin-Turbo V6

Lincoln Aviator

2020-2024 3.0L V6 Twin Turbo

Lincoln Aviator Grand Touring

2020-2024 3.0L Twin Turbo V6 PHEV

Lincoln Aviator Grand Touring

2020-2024 3.0L Twin-Turbo V6 Hybrid

Lincoln Aviator Grand Touring

2020-2024 3.0L V6 Twin Turbo Hybrid

Lincoln Blackwood

2002-2002 5.4L V8

Common Questions

What does code P1746 mean on a 2000-2006 Lincoln LS?

P1746 stands for "Electronic Pressure Control Solenoid Open Circuit". The Electronic Pressure Control (EPC) solenoid has an open circuit. The EPC solenoid regulates hydraulic line pressure in the transmission. Without proper EPC operation, transmission shifting is severely affected.

What are the symptoms of P1746 on a Lincoln LS?

Common symptoms of P1746 include: Check Engine Light, Harsh or erratic shifting, Transmission slipping, Limp mode (stuck in one gear), Transmission overheating.

What causes P1746 on a 2000-2006 Lincoln LS?

Common causes of P1746 include: Faulty EPC solenoid, Wiring open to EPC solenoid, Corroded EPC solenoid connector, Damaged PCM/TCM driver circuit.

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