Component Inspection

WARNING: This page is about a different car, the 2012 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.

Front Blower Motor Relay

Check continuity between terminals by supplying 12 volts and ground to coil side terminals of relay.

Fig 1: Checking Continuity Between Front Blower Motor Relay Terminals

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Front Blower Motor

Confirm smooth rotation of the blower motor.

Ensure that there are no foreign particles inside the blower unit.
Apply 12 volts to terminal 2 and ground to terminal 1 and verify that the motor operates freely and quietly.

Fig 2: Checking Continuity Between Front Blower Motor Connector Terminal 1 And 2 Using Battery
Courtesy of NISSAN NORTH AMERICA, INC.

Front Blower Switch

Check continuity between the terminals at each front blower switch position.

Fig 3: Front Blower Switch Connector Continuity Reference Chart

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Blower Motor Resistor

Check continuity between terminals. There will be resistance, but there should not be an open or short between any two terminals.

Fig 4: Identifying Front Blower Motor Resistor Connector

Courtesy of NISSAN NORTH AMERICA, INC.