Okay. We need to do a couple things. First take a look at the wiring diagram. We need to check for power at number 1 with the key in the run position.
Then we need to turn the wiper switch on and find out if the GEM is grounding the relay to close the relay. You do this by putting your red meter lead on positive battery terminal, then remove the relay and put the black lead at number 2. The meter should read 12 volts. If it is then the GEM is grounding the relay correctly.
If this all checks out then you know the relay is getting grounded so jump number 1 to number 3. If the wipers come on your relay has failed.
Let me know what you find and we can go from there. Thanks
Wednesday, October 7th, 2020 AT 5:21 PM