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 MANUALSTOYOTA2001HIGHLANDER 2WD L4-2.4L (2AZ-FE)REPAIR AND DIAGNOSISHEATING AND AIR CONDITIONINGBLOWER MOTOR RELAYTESTING AND INSPECTION
2001 Toyota Highlander 2WD L4-2.4L (2AZ-FE)
Blower Motor Relay: Testing and Inspection
2001 Toyota Highlander 2WD L4-2.4L (2AZ-FE)SECTION Testing and Inspection
HEATER BLOWER MOTOR RELAY ASSEMBLY (MANUAL AIR CONDITIONER)
a. Check that the continuity exists between each pair of terminals of heater blower motor relay assembly, as shown in the chart.
b. Apply battery voltage between terminals 3 and 5.
c. Check continuity each pair of terminals, as shown the chart.
If continuity is not as specified, replace the heater blower motor relay.
a. Check that the continuity exists between each pair of terminals of heater blower motor relay assembly, as shown in the chart.
b. Apply battery voltage between terminals 3 and 5.
c. Check continuity each pair of terminals, as shown the chart.
If continuity is not as specified, replace the heater blower motor 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.