HVAC SYSTEM (HEATER, VENTILATOR AND A/C) > Relay and Fuse

INSPECTION

1. FUSE

1. Remove the fuse and inspect visually.

2. If the fuse is blown out, replace the fuse.

2. RELAY

1. Connect terminal No. 4 to the battery positive terminal and the No. 3 terminal to the battery negative terminal, and measure the resistance between the relay terminals.

Continuity

Terminal No.

Standard

Yes

1 and 2

Less than 1 Ω

No

1 MΩ or more

2. Replace the relay if defective.