Nissan 27200-86E00 Front Blower Assembly

Remove the blower motor cover screws and disconnect the electrical connector from the blower motor.

To check the blower resistor for proper operation, probe the wires at the resistor leading from the blower switch. Using an ohmmeter, check for continuity to ground at the resistor electrical connector while the blower switch is rotated through all the switch positions. Continuity to ground should be present at three of the terminals in all switch positions except Off. If a ground signal doesn't exist at the blower resistor connector, you should repair the blower motor switch or the circuit leading to the switch.