Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSTOYOTA2025HIGHLANDER XLE, FWDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCEENGINE CONTROL SYSTEMSENGINE CONTROL SYSTEM (T24A-FTS) (SERVICE SPECIFICATIONS)
2025 Toyota Highlander XLE, FWD
Engine Control System (T24A-FTS) (Service Specifications)
2025 Toyota Highlander XLE, FWDSECTION Engine Control System (T24A-FTS) (Service Specifications)
- T24A-FTS Engine Control
- Service Data [10/2022 - 11/2023]
- Service Data [10/2022 - 11/2023]
- Ignition System
- Camshaft Oil Control Valve
- Camshaft Oil Control Solenoid
- Throttle Body
- Vacuum Switching Valve (For Engine Mounting)
- Mass Air Flow Meter
- Engine Coolant Temperature Sensor
- Engine Oil Temperature Sensor
- Knock Sensor
- No. 1 Turbo Pressure Sensor
- Air Fuel Ratio Sensor (For Sensor 1)
- Air Fuel Ratio Sensor (For Sensor 2)
- Relay
- Service Data [10/2022 - 11/2023]
- Service Data [11/2023 - ]
- Service Data [11/2023 - ]
- Ignition System
- Camshaft Oil Control Valve
- Camshaft Oil Control Solenoid
- Throttle Body
- Vacuum Switching Valve (For Engine Mounting)
- Mass Air Flow Meter
- Engine Coolant Temperature Sensor
- Engine Oil Temperature Sensor
- Knock Sensor
- No. 1 Turbo Pressure Sensor
- Air Fuel Ratio Sensor (For Sensor 1)
- Air Fuel Ratio Sensor (For Sensor 2)
- Relay
- Service Data [11/2023 - ]
- Torque Specifications [10/2022 - ]
- Torque Specifications [10/2022 - ]
- Camshaft Oil Control Valve
- Camshaft Oil Control Solenoid
- Throttle Body
- Vacuum Switching Valve (For Engine Mounting)
- Active Control Engine Mount (For Front Side)
- Active Control Engine Mount (For Rear Side)
- ECM
- Accelerator Pedal
- Camshaft Position Sensor
- Crankshaft Position Sensor
- Ignition Coil And Spark Plug
- Engine Coolant Temperature Sensor
- Engine Oil Temperature Sensor
- Knock Sensor
- Manifold Absolute Pressure Sensor
- Vacuum Sensor
- Air Fuel Ratio Sensor (For Sensor 1)
- Air Fuel Ratio Sensor (For Sensor 2)
- Torque Specifications [10/2022 - ]
- Service Data [10/2022 - 11/2023]
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.