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 MANUALSTOYOTA2006SEQUOIA 4WD V8-4.7L (2UZ-FE)REPAIR AND DIAGNOSISBRAKES AND TRACTION CONTROLHYDRAULIC SYSTEMBRAKE FLUID LEVEL SENSOR/SWITCHTESTING AND INSPECTION
2006 Toyota Sequoia 4WD V8-4.7L (2UZ-FE)
Brake Fluid Level Sensor/Switch: Testing and Inspection
2006 Toyota Sequoia 4WD V8-4.7L (2UZ-FE)SECTION Testing and Inspection
INSPECT BRAKE FLUID LEVEL WARNING SWITCH CONTINUITY
a. Remove the reservoir tank cap and strainer.
b. Disconnect the connector.
c. Check that no continuity exists between the terminals with the switch OFF (float up).
d. Use siphon, etc. to drain fluid out of the reservoir tank.
e. Check that continuity exists between the terminals with the switch ON (float down).
f. Pour the fluid back in the reservoir tank.
If continuity is not as specified, replace the switch.
a. Remove the reservoir tank cap and strainer.
b. Disconnect the connector.
c. Check that no continuity exists between the terminals with the switch OFF (float up).
d. Use siphon, etc. to drain fluid out of the reservoir tank.
e. Check that continuity exists between the terminals with the switch ON (float down).
f. Pour the fluid back in the reservoir tank.
If continuity is not as specified, replace the switch.
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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.