P0048 on Toyota: How to Diagnose & Fix
Turbocharger/Supercharger Boost Control Solenoid Circuit High
1 Toyota model · 1 documented issue · 1 critical
P0048 on Toyota by model: symptoms, diagnosis and fix
Third-generation Tundras with the V35A-FTS twin-turbo V6 (both gas and i-FORCE MAX hybrid) commonly throw boost/wastegate fault codes due to failure of the electronic wastegate actuators integrated into the turbo housings. Early 2022 builds were affected by a bad batch of actuators with an internal electrical fault; thermal cycling also fatigues the actuator over time. When the actuator binds or its circuit fails, the ECU cuts boost and drops the engine into reduced-power/limp mode. Because the actuator is part of the turbo housing, Toyota's initial procedure required replacing the entire turbocharger — an extremely labor-intensive job that can require pulling the cab. This is a distinct, separate failure from the metal-debris main-bearing engine-replacement recall.
Common Symptoms
- Check engine light with boost/wastegate codes
- Sudden loss of power / limp mode
- Reduced acceleration or no boost
- Rattling or buzzing from turbo area
- Inconsistent throttle response
How to Fix
Scan for boost-control/wastegate codes and confirm actuator function. Under powertrain warranty Toyota replaces the affected turbocharger/wastegate assembly. For the early-2022 'bad batch,' replacement of the updated actuator/turbo resolves the recurring CEL. Out of warranty this is a major repair; some independent shops can replace just the actuator on the updated procedure where supported.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- Toyota 17201-F4011 genuine left turbocharger subassembly
replace a repair-manual-confirmed defective left turbocharger/wastegate subassembly Fitment/availability: Left/driver-side V35A turbo branch; catalog supersedes 17201-70070 and 17201-F4010, and VIN, gas-versus-hybrid configuration, produ…
- Toyota 17208-F4011 genuine right turbocharger subassembly
replace a repair-manual-confirmed defective right turbocharger/wastegate subassembly Fitment/availability: Right/passenger-side V35A turbo branch; catalog supersedes 17208-70070 and 17208-F4010, and VIN, gas-versus-hybrid configuration, …
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Sources for this issue (3)
P0048 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 P0048 mean on a Toyota?
P0048 stands for "Turbocharger/Supercharger Boost Control Solenoid Circuit High." The PCM detects high voltage (short to voltage or open) on the turbo/supercharger boost control solenoid circuit. On Toyota it is documented across 1 model: Tundra.
What are the most common causes of P0048?
The most common causes of P0048 are: Short to voltage in solenoid wiring, Open control circuit, Failed boost control solenoid, PCM driver fault. The specific cause varies by vehicle.
How much does it cost to fix P0048 on a Toyota?
Repair costs vary widely with the root cause and Toyota model; each issue on this page carries its own estimate where one is published.
Looking for P0048 on a different make?
View P0048 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.