XT-6 2WD L6-2.7L SOHC (1989)
Compressor/Pump Relay: Testing and Inspection
Fig. 8 Compressor Relay Terminal View
A10-Compressor Relay
Connect a suitable 12 volt source to solenoid valve, then apply compressed air and check that air passes through solenoid. If air does not pass through
valve, replace.
A12-Compressor Relay
Connect a suitable 12 volt source to terminal A, and ground terminal B, Fig. 8. Check that continuity exists between terminals C and D. Disconnect 12
volt source and check that no continuity exists between terminals C and D. Replace relay if continuity checks are not as specified.