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 MANUALSTOYOTA2007HIGHLANDER 2WD V6-3.3L (3MZ-FE)REPAIR AND DIAGNOSISHEATING AND AIR CONDITIONINGBLOWER MOTOR SWITCHTESTING AND INSPECTIONREAR BLOWER MAIN SWITCH
2007 Toyota Highlander 2WD V6-3.3L (3MZ-FE)
Rear Blower Main Switch
2007 Toyota Highlander 2WD V6-3.3L (3MZ-FE)SECTION Rear Blower Main Switch
INSPECTION
1. INSPECT REAR HEATER MAIN SWITCH
a. Remove the rear heater main switch.
b. Disconnect the connector from the rear heater main switch.
c. Measure the resistance according to the value(s) in the table.
If the resistance is not as specified, replace the rear main switch.
NOTE: While using the battery during inspection, do not bring the positive and negative tester probes too close to each other as a short circuit may occur.
1. INSPECT REAR HEATER MAIN SWITCH
a. Remove the rear heater main switch.
b. Disconnect the connector from the rear heater main switch.
c. Measure the resistance according to the value(s) in the table.
If the resistance is not as specified, replace the rear main switch.
NOTE: While using the battery during inspection, do not bring the positive and negative tester probes too close to each other as a short circuit may occur.
RENDER: 1.0x
NO RELATED
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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.