Pickup 2WD L4-2366cc 2.4L SOHC (22R) (1982)
Blower Motor Relay: Testing and Inspection
Fig. 12 Heater Main Relay Terminals.
1.
Remove main heater relay.
2.
Using ohmmeter, measure resistance between terminals 1 and 2, Fig. 12. Resistance should be 50-80 ohms.
3.
Apply 12 volt battery voltage across terminals 1 and 2. Check for continuity between terminals 3 and 4.
4.
Replace switch if defective.