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OBD-II Code

P0745

Severity

Not yet reviewed

Nobody on our side has assessed this code yet, so we are not going to guess at how serious it is.

Can you drive it

We cannot say

Treat it as unknown until a shop reads it with live data. If the check-engine light is FLASHING, stop driving as soon as it is safe to — that means an active misfire, whatever the code.

Indicative cost (USD)

$200–$3,500

From this code's diagnostic notes. Varies by vehicle, diagnosis, parts, and local labor. This is not a repair quote.

$200 (solenoid swap) to $3,500 (rebuild if the slip was ignored).

P0745 means Pressure Control Solenoid A — the line-pressure solenoid, also called the Electronic Pressure Control (EPC) solenoid on Ford or the variable force solenoid (VFS) on GM — has an electrical fault: open coil, short to ground, short to power, or out-of-range current draw versus commanded duty cycle.

How a shop works this

Work from evidence to part, not the other way round. A code names a circuit or a symptom; it does not name the part that failed.

  1. Note every code that is set, not just this one.

    Codes that appear together usually narrow the cause faster than any one of them read alone.

  2. Read the freeze frame — the conditions the fault was recorded under.

    Cold or warm, idle or load, road speed and engine speed. A fault that only appears cold is a different fault from one that only appears under load, even with the same code on the scanner.

  3. Confirm the fault is current rather than history.

    Clear the code and see whether it returns under those same conditions. A code that does not come back may have been logged during a repair, a flat battery, or a bad connection that has since been disturbed.

  4. Then follow the diagnostic notes further down this page, in the order they are written.

    They are written in the order a shop works this code, cheapest checks first. Where they name a component, inspect its wiring and connector before replacing it.

If the code comes back after a repair, the underlying fault is still there. That is the point to bring in a scanner with live data and freeze-frame, or a shop that has one.

Common symptoms

  • Check engine light
Read the full diagnostic procedureP0745 means Pressure Control Solenoid A — the line-pressure solenoid, also called the Electronic Pressure Control (EPC) solenoid on Ford or the varia…

P0745 means Pressure Control Solenoid A — the line-pressure solenoid, also called the Electronic Pressure Control (EPC) solenoid on Ford or the variable force solenoid (VFS) on GM — has an electrical fault: open coil, short to ground, short to power, or out-of-range current draw versus commanded duty cycle. The TCM commands line pressure typically 50-260 psi depending on torque demand and gear, and PCS-A is the solenoid that actually controls main-pump pressure feeding every clutch and band in the box. A healthy solenoid coil ohms out 3-15 ohms on most platforms (Ford EPC is around 4-6 ohms, GM 4L60E EPC is around 3-5 ohms; shift/on-off solenoids are 8-30 ohms, so don't mix them up).

Cheapest-first ladder

  1. Scan-tool commanded vs. actual line pressure or PCS-A current if available — a healthy circuit tracks commanded duty cycle within 5-10%; a flatlined actual current is an open circuit, a current draw way above commanded is a shorted coil.
  2. Drop the pan, pull the solenoid, ohm the coil at room temp and again after heat-gunning it to 180°F — many EPC solenoids fail only when hot, so a cold bench test that reads spec doesn't clear the part.
  3. Inspect the internal harness and the case connector pass-through for fluid contamination — pressurized ATF wicking up the wires into the TCM is a documented failure mode and shows up as P0745 along with random other solenoid codes. The expensive-misdiagnosis caveat: don't condemn the trans before confirming fluid level + condition — a burned-fluid 4L60E with a P0745 and harsh 1-2 shifts needs internal repair (worn pump, blown clutch packs), not a $90 solenoid; conversely, a clean-fluid trans with a single P0745 and normal shifts is almost always just the solenoid or its harness.
Vehicle-specific patterns1995-2014 GM 4L60E/4L65E (Silverado, Tahoe, Camaro, Trailblazer) throws P0745 from EPC solenoid failure that ALSO causes TCC apply slip and 3-4 clutc…
  • 1995-2014GM 4L60E/4L65E (Silverado, Tahoe, Camaro, Trailblazer) throws P0745 from EPC solenoid failure that ALSO causes TCC apply slip and 3-4 clutch burn-up if ignored — the solenoid is $40-90, but if you've been driving with a slipping TCC for weeks the rebuild is now $1,800-2,800 because the 3-4 clutch pack is cooked.
  • 2011-2019Ford 6R80 (F-150, Mustang, Explorer) throws P0745 from EPC solenoid wear on the lead-frame contacts; Ford sells the lead frame as a service part, $150-300 parts, 4-6 hours labor for the valve-body R&R.
  • 2003-2012Chrysler 545RFE / 65RFE (RAM 1500/2500, Durango, Jeep Grand Cherokee) throws P0745 from the TCC apply solenoid (which is the PCS-A on this platform) sticking and from the solenoid pack as a whole degrading around 100-150k miles — Mopar solenoid pack is $200-400.
  • 2007-2018Aisin AS68RC (RAM 5500) throws P0745 from internal harness contamination.

Estimated repair$200 (solenoid swap) to $3,500 (rebuild if the slip was ignored).

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