P0746 on Toyota
Pressure Control Solenoid Performance/Stuck Off
P0746 on Toyota vehicles indicates pressure control solenoid performance/stuck off. Au7o has documented this code across 1 Toyota model — most commonly on Land Cruiser. P0746 means the transmission's pressure control solenoid 'A' is performing poorly or appears stuck in the off (low pressure) position. This solenoid regulates hydraulic line pressure that applies clutches and bands to make smooth, firm shifts; the TCM detects when commanded pressure changes aren't producing the expected response. A stuck-off condition typically means line pressure stays low. You may experience slipping, soft or delayed shifts, harsh engagement, overheating, or the transmission entering limp mode.
Common Causes of P0746
- •Low, dirty, or degraded transmission fluid
- •Faulty pressure control / EPC solenoid
- •Clogged valve body passages or stuck valve
- •Wiring or connector fault at the solenoid
- •Internal transmission wear (worn clutches, leaking seals)
- •Dirty or clogged transmission filter
- •Faulty transmission control module (less common)
P0746 on Toyota by Model
Toyota Land Cruiser(1 issue)
- Transmission Hesitation or Harsh Shift Behavior Requiring ECM/TCM Calibration Update2022-2023
Owners of the 300-series Land Cruiser and closely related TNGA-F Toyota/Lexus models have reported delayed engagement, low-speed hesitation, or abrupt 10-speed automatic shifts, especially when cold or during rolling stops. Toyota service literature for related powertrain calibration concerns points to software logic rather than hard-part failure in many cases. Complaints typically describe inconsistent throttle response paired with a sudden downshift or lurch.
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View P0746 across all makes →Frequently Asked Questions
What does P0746 mean on Toyota?▼
P0746 stands for "Pressure Control Solenoid Performance/Stuck Off." P0746 means the transmission's pressure control solenoid 'A' is performing poorly or appears stuck in the off (low pressure) position. This solenoid regulates hydraulic line pressure that applies clutches and bands to make smooth, firm shifts; the TCM detects when commanded pressure changes aren't producing the expected response. A stuck-off condition typically means line pressure stays low. You may experience slipping, soft or delayed shifts, harsh engagement, overheating, or the transmission entering limp mode. On Toyota specifically, this code is documented across 1 model.
What causes P0746 on Toyota vehicles?▼
Common causes on Toyota: Low, dirty, or degraded transmission fluid, Faulty pressure control / EPC solenoid, Clogged valve body passages or stuck valve, Wiring or connector fault at the solenoid, Internal transmission wear (worn clutches, leaking seals). Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0746 on a Toyota?▼
Repair costs vary widely depending on the root cause and specific Toyota model.
Which Toyota models have P0746 documented?▼
Au7o has documented P0746 on 1 Toyota model: Land Cruiser.