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, 4WDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCEENGINE CONTROL SYSTEMSENGINE CONTROL SYSTEM (T24A-FTS) - SERVICE INFORMATION
2025 Toyota Highlander XLE, 4WD
Engine Control System (T24A-FTS) - Service Information
2025 Toyota Highlander XLE, 4WDSECTION Engine Control System (T24A-FTS) - Service Information
- 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
- Mass Air Flow Meter
- 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)
- Relay
RENDER: 1.0x
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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.