Let me just say I'm really, really out of my element when it comes to electrical. Ok, I have a 1979 pickup and I'm trying to figure out why my washer pump is not working when activating the switch. Here is what I have done so far.
- the windshield wipers work on all three settings (intermittent, low, high) so I believe this verifies any fuse problem
- I tested the washer pump by connecting 12 volts straight to the connections on the pump and it runs fine
- using my voltmeter I connected to the terminal connector that plugs into the pump and when I push the washer button, I do not see any voltage on the voltmeter (see below connector pic)
I'm assuming my next step is to test the switch, but here is where I get little lost and need some guidance. Attached is a pic of the FSM and steering column. It looks like I need to unplug the wiring connector on the steering column and then connect my multimeter (on continuity setting) across pins EW and W and then press the washer button. If I get continuity, then my switch is good? If no continuity at switch, is it possible to take it apart and clean? If there is continuity, what's next? Thanks.
- the windshield wipers work on all three settings (intermittent, low, high) so I believe this verifies any fuse problem
- I tested the washer pump by connecting 12 volts straight to the connections on the pump and it runs fine
- using my voltmeter I connected to the terminal connector that plugs into the pump and when I push the washer button, I do not see any voltage on the voltmeter (see below connector pic)
I'm assuming my next step is to test the switch, but here is where I get little lost and need some guidance. Attached is a pic of the FSM and steering column. It looks like I need to unplug the wiring connector on the steering column and then connect my multimeter (on continuity setting) across pins EW and W and then press the washer button. If I get continuity, then my switch is good? If no continuity at switch, is it possible to take it apart and clean? If there is continuity, what's next? Thanks.