CHECK BLOWER MOTOR RELAY.

1) Turn the ignition switch to OFF.

2) Remove the blower motor relay.

3) Connect the battery positive (+) terminal to terminal No. 1 of blower motor relay, and negative (−) terminal to terminal No. 2.

4) Measure the resistance between terminals No. 3 and No. 4.

Terminals

No. 3 — No. 4:

QUESTION

Is the resistance less than 1 Ω?

Yes No

Replace the blower motor relay.