P0745 on Nissan: How to Diagnose & Fix
Pressure Control Solenoid Malfunction
1 Nissan model · 1 documented issue · 1 critical · $900-$3,500 repair
P0745 on Nissan by model: symptoms, diagnosis and fix
The Jatco RE5R05A five-speed automatic used in the second-generation Frontier carries its transmission control module bolted directly to the valve body, submerged in hot ATF. That packaging is the weak point: sustained heat cycling and vibration crack solder joints and kill solenoid drivers, while the shift solenoids themselves are delicate and intolerant of any contamination. Owners report slipping between gears, delayed or flared upshifts, refusal to shift above a certain gear, and the transmission dropping into a fixed-gear limp mode. This is documented as a failure in its own right and is distinct from - though badly aggravated by - the coolant-into-ATF radiator failure this platform is also known for, since the resulting gel jams the solenoid plungers and shorts the solenoid wiring. Diagnosis is often mistaken for whole-transmission failure when only the valve body and TCM have gone.
Common Symptoms
- Harsh, delayed or erratic shifting
- Slipping between gears or shift flare
- Stuck in one gear (limp mode)
- Will not shift into higher gears
- Transmission warning light on
How to Fix
Scan transmission codes and inspect ATF for coolant contamination before ordering. If the radiator cooler failed, repair that failure and the cooler circuit first; a contaminated or mechanically damaged transmission may need a rebuild rather than a valve body.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- Sunbelt RE5R05A valve body with VIN-programmed TCM$795
2005-2012 Nissan Frontier 2.5L or 4.0L with the RE5R05A five-speed automatic; VIN and plate-code availability must be confirmed.
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Sources for this issue (3)
P0745 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does P0745 mean on a Nissan?
P0745 stands for "Pressure Control Solenoid Malfunction." This transmission code indicates a problem with the pressure control solenoid (also called the line pressure or EPC solenoid), an electronically controlled valve that regulates the hydraulic fluid pressure inside the automatic transmission. The transmission computer uses this solenoid to set the right pressure for smooth, firm shifts, so when it detects an electrical fault or out-of-range performance, it sets this code. The result is often harsh, soft, or erratic shifting, and the transmission may drop into a protective limp mode. It generally points to an electrical or hydraulic issue with the solenoid itself or its control circuit. On Nissan it is documented across 1 model: Frontier.
What are the most common causes of P0745?
The most common causes of P0745 are: Failed or stuck pressure control (EPC) solenoid, Low or contaminated transmission fluid, Dirty fluid clogging or sticking the solenoid valve, Wiring or connector fault in the solenoid circuit, Internal valve body wear or leakage, Faulty transmission control module, Internal transmission electrical (case connector) short. The specific cause varies by vehicle.
How much does it cost to fix P0745 on a Nissan?
Published repair estimates on Nissan range from $900 to $3,500 depending on the model and root cause. If an issue mentions a recall or campaign, check your VIN with the manufacturer or NHTSA and confirm eligibility and coverage with a dealer.
Looking for P0745 on a different make?
View P0745 across all makes →Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.