P0745 on Volvo
Pressure Control Solenoid Malfunction
P0745 on Volvo vehicles indicates pressure control solenoid malfunction. Au7o has documented this code across 1 Volvo model — most commonly on 960. 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. Typical repair costs on Volvo range from $200 to $2,500, depending on the specific model and root cause.
Common Causes of P0745
- •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
P0745 on Volvo by Model
Volvo 960(1 issue)
- ZF 4HP22 Automatic Transmission Limp Mode1992-1997
The Volvo 960 with the ZF 4HP22 automatic transmission develops electronic control issues that trigger limp mode (stuck in 3rd gear). The transmission control module connections corrode and internal solenoids wear.
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View P0745 across all makes →Frequently Asked Questions
What does P0745 mean on Volvo?▼
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 Volvo specifically, this code is documented across 1 model.
What causes P0745 on Volvo vehicles?▼
Common causes on Volvo: 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. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0745 on a Volvo?▼
Repair costs on Volvo range from $200 to $2,500, depending on the specific model and root cause.
Which Volvo models have P0745 documented?▼
Au7o has documented P0745 on 1 Volvo model: 960.